VW Passat 1.6TDI (CAYC) at temperature erratic part 3
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- čas přidán 6. 04. 2021
- So now we decided that we would change the engine out of frustration as no faults showing up on VCDs. So i have took short video and joined together at different time intervals the engine warm up.
So replaced engine with the following Cam, crank, oil, HP Pump, Alternator, started well tick over sweet until warm same symptoms. So we then started with a Complete New EGR after we found the Diaphragm had a leak. Swapped out the EGR N75 solenoid ( but existing tested OK) EGR VACUUM SYSTEM SOLENOID (This also Tested OK) changed the Exhaust pressure sensor, Still the same problem. When warm It seems to make a loud diesel clank noise and then after a bit a dull clank noise almost sounds like a petrol and then back again, its really strange. Injector amount deviation seems to fluctuate on all injectors at tick over when rough at idle at temperature from -1xxxx to +2xxxx when rough idle I'm assuming its trying to correct itself. Rail pressure and sensor showing around 26 Bar at tick over,.
So far we haven't changed the..
front and rear Temp sensors
fuel temperature sensor
Turbo solenoid - cant see that being at fault.
MAF sensor
MAP sensor
Oxygen Lambda Sensor
Exhaust gas temperature sensors.
Throttle body
Any positive suggestions appreciated - Auta a dopravní prostředky
mileage is 142,000 and 229.000 KM. as per speedo - both old and replacement engine similar mileage.
In addition, i found one video about "injector minimum quantity adaptation", have you tried it? Also they say that an injector can make compensation for a worn flywheel. Greets!
Check for combustion misfires
It turned out to be the refurb injectors, after my friend was constantly trying to communicate with the guy that refurbed them it turned out he put the wrong nozzle on them.
I have the same issue, only when car is under long term load, like highway driving... The injector measurements are perfectly fine, no fault codes... Still wondering what is it! If any suggestions, please reply! Thanks.
czcams.com/video/owiBfvi0-ik/video.html check the video, its not pro like yours, but it sums things up :). Regards.