Best tool for read/write EDC17 via OBD?

Question: I’m wondering if there’s a way to remap my ECU without having to take it out the car and boot it on the bench. I’ve seen some articles about CMD flash but I wasn’t sure how far along that technology is? What are remapping companies using on the Tricore ECU?

Answer: There are quite a few derivatives of the EDC17. Bench tuning for the majority and probably the best way to tune as we fully backup the ECU including eeprom etc

Here are some solutions of EDC17…. Enjoy! Good luck! 

• For EDC16 i am using BDM100from china.
• I USE FGTECH 54AND IS OK. no problem.
• I read one EDC17 in Audi A4 with MPPS v16.
• Another EDC17 I read in boot mode with galletto v54good china clone… Do job perfectly.

When you have problem, just try this way: uninstall all fgtech software. Install basic version. Connect tool and give drivers. Unplug tool. Remove basic. Install Win7 version. Plug tool + drivers. Done.

• I use the kess reworked pcb and fw updated, like 08 what is available…is great tool, recently KESS FM V4.036available, haven’t test it, but I think it will do. As told by eobd2.fr customer service, the older fw kess v2 is available to update firmware by returning back the main unit to them and charge $89, but the QC number has to be ended with 015.
• I use byteshooter does most ecus obd2, inclusively edc17 first models until 2009, first generation. For late edc17 byteshooter reads very good on table, only resistor adding is needed. If you want good tool go Byteshoter. Never had issues with it. Galetto v54 reworked pcb works good too.
• CMD CAN Flasherdont can read write all edc17 by obd, only a few.

Source:http://www.obdexpress.co.uk/service/best-tool-for-read-write-edc17-via-obd-17507.html

XPROG-M, Carprog v8.21, R270 - read & erase BMW EEPROM M35080

I wanna share some tips to read and erase BMW EEPROM M35080, with Xprog m v5.3, Carprog v8.21/ v9.31, R270+ BDM Programmer v1.2.. all mentioned and suggested in my post in a forum. Ideas are form obd2express customer service. Hope it helps you also.

Details of Xprog m v5.3, Carprog v8.21/ v9.31, R270+ BDM Programmer v1.2..

1- Xprog-M v5.3
Correct connection instruction:

Above is the M35080 pin order and the Xprog-m 16 pin connector pin labels so that the correct 7 pins can be sequenced between the M35080 eeprom and the Xprog-m special programming board for the M35080 Eeprom

Xprog-m v5.3 read EEPROM M35080 success.

2- Carprog v8.21/ v9.31
Manage to read and clear EEPROM M35080
- to read and clear OFFLINE with Carprog v9.31 program

- to read and clear ONLINE in Carprog v8.21 interface

Main steps to read eeprom via carprog:
Open carprog program
Select EEPROM-> 93C 24C 95x v2.6
Click on the tool icon, then select M35-> 35080-> read/ verify, then click OK
Initializing... Reading... Verifying...
Verify ok

Carprog read EEPROM M35080 success.

3- R270 Pro V1.20 CAS4 BDM Programmer
Correct connection...
Open R270 in circuit programmer
Select correct MCU “D80 D0WQ/”
then “M35080/160D” button
then select IC Type “D80 D0WQ/” and DAS Odometer Type “Type 1”
then “Read”
decoding...

R270 pro+ read EEPROM M35080 success.

KESS V2 master truck version FW V4.036 SW V2.22 tested Ok

New update!!! Newest KESS V2 master firmware V4.036 SW V2.22 is tested ok to read write ECU data on with most worldwide truck makes and models. This is an extremely amazing news for KESS V2 regular users who mainly have multi-brand trucks to diagnose, also some cars and motocycle to scan.

Truck version KESS V2 master FW V4.036 compare with SE87-CK and SE87-D:
1) Truck version V4.036 read write ECU data on more trucks models compared with firmware V4.024 (Item No. SE87-CK)

2) Truck version V4.036 read write ECU data on not only trucks but also cars and motorcyles, while the car version V4.036 (Item No. SE87-D) hardware fail to cover truck otherwise it will burn the truck (Reading detail in the following part on "installation procedure")

3) Truck version V4.036 only sales for €116.99 and car version V4.036 (Item No. SE87-D) is €165.


Truck version V4.036 KESS V2 master User tips:
1) Disable both local area and wireless network connection
2) OS: Windows XP 32bit (better)

Truck version V4.036 KESS v2 setup procedure + test trucks, motorcycle and cars
1. Firstly install Ksuite V2.08
You may get the error message reading "connection not established" after successfully finishing the driver, click ok and exit the user interface.

Open E:\Ksuite V2.08\Ksuite and meanwhile right click the icon "K-suite" at the desktop, select "Properties", then click "Find Target", select all files and right click to delete these files to the recycle bin.

Go to "E:\Ksuite V2.08\Ksuite", select all files and right click to copy, and go to C:\Ksuite to paste all.

Open E:\ and copy the folder "Help" to paste to C:\Ksuite, close C:\Ksuite.

Connect Kess v2 V4.036 hardware to the computer, and get message "Found New Hardware Wizard" and click next to finish.

Click My Computer-Manage-Device Manager- Universal Serial Bus controlers, you will find USB device. It means KESS V2 V4.036 has been established a good communication with the computer.

2. Open "K-suite" at the desktop, searching software update online...

3. Test to read write ECU data on trucks , cars and motorcycles
1) To check what truck makes KESS V2 V4.036 covers.
KESS V2 V4.036 read write ECU data on most truck makes and models

2.) Use KESS V2 V4.036 to read out ID and ECU for Cars
Click car icon to have a test, for example BMW-3 Series(E90) 323i 250024v...shown as follows. Then click "OK"

Get prompt about what to notice.

Kline or Can to select, e.g Can

Select options: ID, reading, writing, recovery.

a)Read out ID
Click "Ok" to confirm you have done as the prompt.
Finally read out HW, SW and chassis

Then click "Ok" to save at the desktop, name as "e90".

b) Reading
Back to select "READING"
Click "Ok" to confirm you have done as the prompt.

Test another BMW model e.g BMW 3 series 320d 2000 D N47D2000...
You will get waring, notices and recommendation and instruction. As for the pinout most users tend to ask, click "Here" shown as following second pic.

3.) Motorcycle secondly
KESS V2 V4.036 read write ECU data on a multi-brand Motorcycles shown as follows. take BMW MOTORRAD for example.

kess v2 wake up error solution

How to Solve KESS V2 Wake up error?


If you encounter "Wake up error" when running Kess v2 as the following picture shows:

Possible reasons for wake up error:
Kess v2 fails to read out TF card program or the program in the TF card is not working properly.
2 reasons for Kess v2 fails to read out TF card program.
1) The four pins of chip are not soldered firmly on the main board.
2) The chip is loose for a long time of use.

Try to do as following instruction:
1) Solder the chip once more to make it tightly connected to the main board.
2) Clean up the shrapnel on the card slot with a brush.
3) Lift up the shrapnel a little bit to make sure it can well communicate
with the TF card, if the card slot shrapnel is not flexible enough.
4) Clean the TF card and then put it back to the card slot.

If the wake up error stays, format the card and then copy the software back to the card.
It is easy 3 basic steps, pay attention to the important note.
1. Format TF card
2. Ask us to send you the software in the TF card
3.
decompress the file, choose them all, copy and paste to TF card.
(IMPORTANT NOTE: Don’t directly copy the compressed file to TF card;
don’t create a new folder in TF card and copy decompressed file into
it.)

(1. Decompress file: kessv2 up)

(2. Copy the 4 files and paste to TF card)
Note: Following is Wrong operation:

If
the two methods above do not work out wake up error, reflash the CPU
program, and then copy and paste the software to the TF card again. The
procedure to reflash CPU is as the same as that to solve token
limitation as the following link shows:

Vehicle oil spill prevention measures

1. Attention to car diagnostic tool gasket role. Put it aside part in the car (for example, each joining side, the cover, housing cover pad, flat enamel cover) plays a leak-proof seal gasket between the parts. If materials, production quality and the installation does not meet the technical specifications, would not achieve the role of leak-proof seal, even accidents. Such as the oil sump or the valve cover, due to a large contact area and less compaction, thereby causing oil spills. Buy more affordable car cushion

2. Car regulations required all types of fastening nut tightening torque. Too loose pressure is not tight gasket leak; too tight will make the screw holes around the metal bumps or threaded screw slip caused by the oil spill. Sump If you do not tighten the oil drain plug or loose back off, likely to cause the loss of oil, and subsequent engine damage, injury Burnt axle ".

3. Replace the car ECU programmer failed oil seal in a timely manner. Car lot and set parts (such as oil seals, O-rings) due to improper installation, journal and seal edge misalignment, deflection and dumped oil. Some oil seal for too long due to the aging of rubber and lose their elasticity. Found leakage shall be updated.

4. To avoid a one-way valve, the ventilation valve blocked. The resulting tank shell temperature rises, oil and gas fills the entire space, emissions do not go out of the tank shell pressure increases oil consumption increase and replacement cycles. Clogging of the engine ventilation system, an increase of the resistance movement of the piston, the increase in fuel consumption. Due to the pressure difference inside and outside the tank shell, tend to cause the weak seal oil. Need to carry out regular inspections of vehicles, and clear, clean.

5. Properly resolve various types of tubing joints sealed. Car disassembly, easy to slip the wire off the buckle loose union nut often will cause oil leakage. Replace the union nut, grinding method to solve the cone seal nut pressed to solve the sealing.

6. Avoid rid galletto 2 of the oil hub. Wheel hub bearing and cavity too much grease or oil seal assembly is wrong, poor quality and aging failure; wheels brake frequently caused by temperature; axle nut loose will cause the wheels dumped oil. Therefore use the "cavity lubrication (ie amount of lubrication), and clear the vent.

Nissan driving skills Collection

I'll tell you about car ECU programmer and the Slope. When the vehicle is uphill, the gentle slope, hanging in the D range, about 50 meters before the uphill a little oil, to improve the vehicle's power, slowly release the throttle after reaching the top of the hill, with coasting. If steep, high-end bit of the power output to meet the power requirements can not climbing, consider the gear down to the D3 file. If the steep, can be linked into the D2 or D1 to Slope Slope and then according to road switched back to normal driving D file or D3 file. Winter car seat which

Has been online controversy: a start-up and shut down the engine in the P file or N range? The other is a temporary stop, in the end is a good stepping on the brake N files or D file?

Theoretical things do not write, I talk about the actual operation.

1) After car diagnostic tool the power is turned on, no ignition, but slam the brakes pulled the stalls N file, re-ignition after hanging directly with D gear, I think to avoid the ignition of the P file, you need to R file, the transmission has a reverse impact.

2) stop, my approach is: good car, slam the brakes pulled the shift lever N files, depress the handbrake, release the foot brake after the flame, and then the gear lever into the P file. Car Seat brands

 3) temporary parking for two minutes, I limit within slam the brakes hanging in the D range, plug-N file depresses the handbrake. Reaction wheel because there is a set of one-way clutch transmission torque converter is an enlarged torque from the crankshaft of the engine, it is not rotating at engine idling, the engine speed

Rise, it will work. So slam the brakes hanging in the D file and linked to the N file depresses the handbrake are correct. The latter operation is that it gives the right foot to relax.

Although carprog the stick shift, I opened more than nine years, automatic transmission Buick Regal count more than four years, but just some of the emotional understanding, would not say that their driving is absolutely correct, even if some experience!

Want to be able to bring some help just getting Teana friends.

Automobile fix knowledge of engine piston rings antifriction

Engine fgtech piston ring antifriction measures

The piston ring is among the key components on the engine, its get the job done a direct impact on the functionality on the engine. , Piston rings and wearing parts, maintenance piston rings, piston generally hanging out, usually the repair or substitute of the piston ring time because the initial engine overhaul deadline.

In recent years, due to the engine to the advancement of high-speed and strengthen the path, the piston rings operating problems more and more harsh, its wear resistance can be put forward greater needs.

Piston ring wear and effect aspects

Car engine in between the piston ring and cylinder liner put on has the next qualities:

one. Piston rings for reciprocating motion among the upper and lower dead level, the pace alterations from your resting state to up to about 30m / s, and so forth to create any significant adjustments.

two. Reciprocate fgtech when, while in the doing work cycle of an intake, compression, the acting and exhaust stroke, cylinder strain varies drastically.

3. Since the influence of your combustion stroke, the motion from the piston ring is usually performed at high temperature, specifically the 1st ring, in the substantial temperature and substantial stress as well as combustion goods created by the chemical impact, the film is difficult to set up, so reach finish Lubrication is extra tough, and frequently in the crucial state of lubrication.

Dress in mechanism, piston ring dress in might be divided in to the standard dress in and tear, fuser put on (scratches, abrasions), abrasive put on and corrosion and wear. But these indicators of put on won't seem alone, but concurrently the presence and influence each other. Piston ring put on is usually divided to the wear elements, put on and upper and lower end from the sliding surface dress in. In general, the sliding surface wear than the upper and lower finish dress in, sliding surface melting put on and abrasive wear; upper and reduced finish by the piston reciprocating influence dress in primarily.

The utmost wear on the piston ring sliding surface normally seem dead center position while in the cylinder, because the premises through the high temperature gas, the destruction in the oil movie, resulting in simple fuser circumstances, therefore accelerating the wear from the piston rings. Ordinarily called normal wear essentially incorporates Fuser small wear and abrasive put on. Each and every track ring the quantity of put on on the sliding surface is just not precisely the same, the maximum wear level of the first ring, the 2nd ring around around half in the initial track, a minimal the quantity of put on in the oil ring. Steyr WD615 engine the piston ring right after 500h right after the dependability test, the first ring opening gap put on 0.4 ~~ 0.6mm, the 2nd opening gap dress in of 0.25 ~ 0.4mm, the oil ring opening gap dress in 0.three ~ 0.55mm. But at times the oil ring wear compared to the middle handful of street ring also significant, this can be because of the distribution of your cylinder surface on the lubricating oil as well as influence of adsorption of impurities.

The finish galletto 2 face of your dress in with the piston rings and down mainly because the rigid residue and oil fuel coming into into the dust particles from the ambiance is formed during the vertical end surface of your mechanical polishing, in essence, will be the abrasive dress in. Nevertheless, when seem abnormal thermal deformation of your piston ring groove backlash variable hrs, may also arise fuser dress in.

Influence piston ring put on of quite a few things, including the material and shape of the piston ring and cylinder liner material and framework of your piston, the state of lubrication, the structural form in the engine (s), working situations, fuel and lubricating oil quality is usually a important component. Obviously, during the very same cylinder, the lubrication state with the piston ring put on will be the biggest, may be stated piston ring dress in largely depends upon the state of lubrication. Best torus lubrication of a uniform layer of oil movie in between the sliding surfaces, nonetheless, this case does not, in reality, exist, specially the first ring, as a result of substantial temperatures, it truly is challenging to create a much better lubrication state .

Piston rings antifriction measures
For the reason that numerous things affect the wear of the piston rings, and these variables are sometimes intertwined. Also, diverse engine forms and problems of use, piston ring dress in can differ substantially, and as a result can not depend on improved piston ring structure and resources to resolve the challenge, the key can proceed through the following aspects: the piston rings and cylinder liners products and excellent match; surface treatment method; structural state; lubricants and additives opt for; cylinder liners and piston assembly and operation heat deformation.
http://blogs.rediff.com/obd2expresscouk/2013/03/26/inspection-maintenance-and-engine-blow-by-gases/

Mazda unstable idle immediately after cleaning throttle

An assembly car diagnostic tool of imported engines Hainan Mazda sedan. Automobile clean throttle soon after idling higher, in 1200r/min get down.

Pick-up: Remove the battery line to clear the original value of discovering idle returned to standard following the re-fitted. But driving a number of days after the emergence of reduced idle velocity, clean throttle again, and remove the idle velocity motor, this automobile idling motor rotary valve, cleaning the valve is closed, almost certainly due to this cause isn't cleaned clean idling motor is then removed from your throttle, and plug during the idling motor plug, turn the ignition switch, when the valve is open, refitted and re-cleaning agent valve, commissioning, usual idle.

Just after VAS 5054A a number of days of driving this auto once again to restore the failure at this time is definitely the idle velocity is too lower, cold substantial idle, minimal idle after sizzling auto, barely capable to reside car. Fault code read through through the decoder, show "system normal". See the data stream, the information movement is not really very exact, no reference value.

Right after inspection, identified that this car is outfitted with exhaust gasoline recirculation device suspect this device hairpin, pass into the exhaust gas to your intake manifold inside the idle state, brought about by idling too low phenomenon.

Then take away ELM327 the valve checked and observed that without a doubt, this kind of as evaluation, this valve is removed, then the motor part of the seat portion separate, direct hand pressure acting spool, clearly hairpin indicators, cleaning and thread loose agent lubricated, is often simply pressed, mounted retest the car, the engine idle velocity back to ordinary.

Summary: This car or truck is definitely the first failure is high idle speed, the main reason is not completely cleansing the throttle and idle valve, idle speed is also reduced failure later on phenomenon, the idle minimal failure since the exhaust fuel recirculation valve closed lax, resulting in idling some exhaust fuel immediately after combustion is involved in the combustion result in unstable engine work, induce idling adverse. Real restore often encountered this erratic idle poor fault phenomena, below regular conditions, may be deemed the exhaust gasoline recirculation valve closed lax, to observe the framework on the versions in the future servicing, should the exhaust gasoline The recirculation gadget, pay attention to its servicing inside a timely manner, in order to avoid equivalent failures.
http://obd2express.blogspot.com/2013/03/the-vw-magotan-engine-fault-lamp-is-lit.html

Chery to accelerate engine dysfunctional failure Result in Alternative

Failure phenomenon auto diagnostic tool: all through acceleration, the engine pace may well not be a corresponding improve, but dysfunctional, even flameout. The vehicle had cleaned the throttle body, change the spark plug failure remains.

Verify examination: the transfer of fault code display: 1, No. 34 and 35 in the engine ECU wiring disconnect. 2, battery failure. Learned through the circuit diagram, 34, as the key engine ECU ground wire, No. 35 for the engine ECU 12V electrical power input, it can be on the preliminary see that the engine the ECU provide lines exist poor get in touch with. So initially check the 34 main ground wire, electrical power provide fuse and also the engine ECU key relay No. 35, and found that the the shaking engine ECU key relay can occasionally Launch hear the sound of its contacts open. Then open the ECU principal relay uncovered its indicators of damp, make contact with ablation. Exchange the primary relay after the check, have improved relatively but nonetheless accelerate sluggish. Get fault code has no output, and each sensor injector is operating, but located that the fuel pressure inside the fault seems far reduced than the typical pressure, it can be concluded the difficulty together with the fuel supply method. Test the fuel filter, strain regulator fuel pump, fuel pump pace fluctuations fault seems, the fuel pump isn't operating properly, may be because of the fuel pump itself may well fuel pump line fault. Verify the fuel pump supply line, fuel pump relay output voltage instability, then unplug the relay and open to inspection located its coil moist, get in touch with ablation.

Troubleshooting: change the fuel pump relay following the test, the engine is operating back to ordinary.

Overview Summary: PDI Launch X431 GX3 consumer reflect prolonged in the past had cleaned the engine, clean the engine and bring about the engine ECU major relay and fuel pump relay internal moisture injury, which suggests that owners not use water to clean the engine.

http://obd2expresscouk.wordpress.com/2013/03/15/diagnosis-engine-fault-and-how-to-solve/

Engine valve abnormal sound restore procedures

Ring while in the valve car diagnostic tool outdoor valve leakage is much more clear within the high-load, low pace, the sound is enhanced with all the load increases, largely reaming valve seat put on and tear because of improper operation or valve guide bore an excessive amount of, to ensure that the valve seat skewed or valve clearance, resulting in valve ablation cause valve near lax leak sound.

Treatment method method: Remove the cylinder head, grinding valve, check out valve spring stretch, re-adjust valve clearance.

(1) The valve percussion sound

Happens once the engine is idling valve stem occurred in between the finish of their drive continuous knocking sound, enhanced using the pace increases, the engine temperature alter or off the fire once the sound didn't change.

Key motives:
Adjusted valve clearance changes (wear among the lock is not solid, the valve stem together with the drive member), the valve is just not adjusted.

Worn Launch X431 GX3 valve adjustment screw locknut loose valve clearance is too substantial or inconsistent.

3 valve spring seat wear from the tank, the valve rod and catheter wear off very.

Technique: re-adjust the a superb valve clearance adjustment screw locknut loose really should be securely locked, the substitute of badly worn components.

(2) broken valve spring need to be replaced.

(3) valve seat ring, seat off

Valve seat Launch & X431 series surface roughness, substandard machining accuracy, the amount of interference optional seat improper Songkuang, improper selection in case of hot deformation is as well huge, or the valve seat inserts with craft undesirable.

Processing approach: In accordance together with the requirements of the assembly process re inlaid with valve seat flush on the face and body plane, the higher part Shuhei.

http://eobd21.xanga.com/772093135/overhaul-buick-poor-engine-acceleration/

Diagnosis and troubleshooting of engine overheating

Engine auto diagnostic tool overheating is without a doubt a vicious failure, which immediately harm the engine, and in extreme instances can cause catching or strain in the piston and also the cylinder. So, the moment the engine overheating needs to be based on its distinct manifestations, exact diagnosis and timely exclude.

When all of a sudden overheated

Cars in operation, inside the case of your cooling program has become great, in the event the engine is abruptly overheating, mainly you can find basically the following:

1, the cooling method is really a significant leak coolant and overheat. On this regard, might be right with the observation of diagnostic and troubleshooting.

2, pump failure with the cooling water cycle interrupt and lead to the engine to overheat. Then could be made use of for the touch approach to diagnose the unique signs and symptoms of the engine temperature is high, when the radiator, especially its lower temperature is decrease. Within this regard, the response for the water pump fix or replace the water pump.

3, the broken water pump belt and overheating. The cautious servicing personnel or drivers could be learned through observation ammeter dynamic driving directions to discharge or charge indicator lights whilst the engine overheating, broken water pump belt.

4, the Launch & X431 series the Thermostat main valve off and stuck within the inlet pipe, hinder large circulation of cooling water, the engine water jacket pressure increased rapidly when the pressure reaches a certain level (large), the cooling water impulse catching the main valve to change position, conducting large circulation waterway. At this point, the boiling water with a lot of pressure impulse radiator cover appear strong "boil" phenomenon. This failure should change the thermostat.

Lack of cooling water overheating
Cooling water water shortage You will discover two scenarios: cooling water leakage or evaporation, water capacity is lower than the standard capacity.

1, the operation with the cooling water consumption excessive overheating. This shall check:

(1) water tank filled with water after, idling the engine, check the radiator, water pump the scuppers and Cooling ministries leakage phenomenon, if it really should be excluded;

(2) whether there is water from the check of the crankcase oil. Should the oil in water content response to engine the disintegration overhaul;

(3) Check whether the exhaust pipe drainage phenomenon. If so, it might be the cylinder pad washed out, so the water jacket and cylinder collusion. This needs to be checked and replaced the cylinder head gasket.

2, Cooling water Launch X431 GX3 capacity is lower than the standard capacity and overheating. The inspection methods:

(1) scale excessive. Primarily during the long-term water as the coolant from the engine, as the mileage increases, the water in contact with the cooling water jacket wall, the cooling tube on the scale will be gradually thicker, especially from the higher temperature portion. This makes the cooling surface of the cooling process will seem to have a layer of insulating material, difficult time to disperse the heat generated by the engine for power and overheating. Excessive scale, the choice from the scale cleaning agent, in accordance with the directions on the operation method to get rid on the scale.

(2) The tank is clogged. There was a liberation CA1091 car, often overheating. Capacity check, found far below the standard capacity, in the demolition of your water tank, the tank heavy original tank sludge, scale, yarn and other debris, a lot of your core tube blockage, clear fix overheating disappear.

Other causes overheating

http://obd2expresscouk.wordpress.com/2013/03/11/the-engine-can-not-be-started-rapid-fault-diagnosis-method/

Do not neglect the engine coke

Various forms of car ECU programmer engine function, due to the influence with the relevant aspects are more or significantly less deposit formation. The coke is actually a fuel or lubricating oil from the high temperature and oxygen under the action from the item formed. Engine do the job, lubricants of fuel or Cuanru combustor attainable combustion, the unburned a part of the fuel from the catalytic effect of large temperature and oxygen, the formation of your hydroxy acid and resinous glial, adhered to the surface of the component, and then Right after large temperature further shrunk to a complex mixture of asphaltene and oil coke quality, the so-called coke.

The cylinder head components With all the coke, and will decrease the cooling impact in the engine. Bad thermal conductivity of carbon deposition, the thermal conductivity of cast iron or steel 150, this can lead to the engine to overheat, the engine electrical power and economy are greatly reduced.

Piston in the top rated of coke, the formation of a lot of sizzling surface, creating early ignition and deflagration; carbon deposition elevated around the top rated on the piston and also the cylinder head, combustion chamber region decreases, the compression ratio will cause engine knocking, knocking, knocking, and abnormal put on, shorten the lifestyle from the engine.

Valve seat surface poly coke, will bring about the valve closed lax and leak, and the engine is difficult to start out, unable to do the job, as well as valve simple ablation undesirable phenomena.

Valve conduit and valve stem coke gumming, accelerate the valve stem and valve guidebook put on, and also result in the valve stem in the valve guides in the motion astringent stuck.

Deposits in the piston ring groove may cause piston ring side gap the backlash smaller sized, or no gap; side clearance gap by carbon deposition results without expansion; then quickly end result within the loss of elasticity with the piston ring cemented cylinder Mifengbuyan even broken piston rings and cylinder scoring.

Injector cluster the coke, easily caught injector, triggering the engine the missing cylinder operating or sudden flameout.

Preburner starter nozzle poly coke clogged spray holes, challenging to begin the engine.

The spark plug fouling too much, wet fuel, the equivalent parallel shunt resistor spark plug electrode, causing the spark plug leakage, flashover is also weak, serious spark plug isn't going to function. Street exhaust, exhaust pipe muffler wall coke significant increase in exhaust resistance, the exhaust isn't the net, creating the engine temperature to rise, horsepower drops.

Engine deposit formation, should really be promptly eliminated. Usually employed to manually eradicate (that has a wire brush or shovel), also readily available broken piston ring while in the eradication with the surface from the combustion chamber and piston major hand. Muffler coke inconvenience demolition muffler on fire red-hot, and after that swiftly cooled, then the stick tapping, vibration could make coke off.

Of coke combustion Launch & X431 series chamber when conditionally can be chemically completely clear:

Clear carbon deposition within the steel pieces (such as cylinder heads, valve) can be utilized caustic soda 25 grams, 31 grams of sodium carbonate, sodium silicate, 10 grams, 8 grams of soap, potassium dichromate, 5 g, 1000 g of water dubbed cleaning solution, and heated to 70 ?? -80 ??, the components into the cleaning solution soak for about 30 minutes, to make the carbon deposition soften just after brushing or erase, rinse with sizzling water.

Clear aluminum alloy elements (such as piston, aluminum cylinder head) of Coke to the obtainable sodium carbonate 20 g sodium silicate 8 grams, 10 grams of soap, potassium dichromate, 5 g, 1000 g of water dubbed cleaning fluid the same solution was heated to 70 ?? -80 ??, the parts into the cleaning solution soak for 30 minutes, until the carbon deposition softening clear, and rinse with hot water to dry.

The metal cleaner ability descaling cleaning carbon removal agent for coke severe components, in order to enhance the scavenging effect, metal cleaning agent over the basis of adding other ingredients preparing an aqueous solution, the formula is: 40 grams of metal cleaning agent, sodium hydroxide 12 g, 12 g of sodium silicon fluoride, 12 g of sodium pyrophosphate, 10 g of sodium tripolyphosphate, and 1,000 grams of water formulated into a solution, warmed to 70 ?? C to -80 ?? C, soaking cleared.

To prevent engine Launch X431 GX3 deposits, need to the following aspects: 1. Maintain good seal cylinder; the fuel atomization must be good; 3. Inlet and exhaust duct should really be kept clear; valve timing, injection time with should be accurate; 5. spark plug arcing voltage must be normal; engine water temperature ought to be normal; 7. chosen in line together with the specifications of your grade of fuel; proper use on the vehicle, to avoid prolonged overload avoid Meng throttle; 9. timely maintenance maintenance of vehicles, to keep the engine in good technical condition.

http://eobd21.xanga.com/772007455/the-bmw-523li-fuel-pump-current-is-too-high/

Volkswagen New Bora engine can not be started occasionally

A mileage OBD2 Code Scanner of only 800 km, equipped with the BWH engine Volkswagen New Bora sedan. Reflects the owner: car engine can not be started occasionally, and on the dashboard the SAFE indicator (Figure 1).
Pick-up: with VAS5052 detection, fault codes stored in the engine system 16897, its meaning is anti-the starter key error; fault for B104B31 anti-starter system, its meaning is the key no signal; other systems normal. Caused by the fault of the car, according to the analysis of the test results, possible causes of a key, the reader coil failure; Anti starting system control unit (meter) internal failure; relevant line failure.

According obd2 software to the line between the circuit (Figure 2) the check reader coil (terminal T2X / 1, terminal T2X / 2) to the instrument (terminal T32/17, terminal T32/18). Examination was normal. Another key test, the failure is still the same, the probability of failure due to the two keys at the same time is very small, so the fault is likely to be anti-starter system control unit J362 (in instrument cluster J285), an internal fault.

Chen therefore Car OBD2 Tools exclude: replacement with a combination of anti-starter system control unit (J362) instrument (J285), the VAS5052A guide function matching combination meter and keys after the test. Troubleshooting.

Special note: replace the combination meter (J285), press and hold the the instrument lower right car diagnosis tool corner of the zero key instrument initialization.