UK-POLOS.NET - THE VW Polo Forum

Are normal operation injection corrections good? 0.2-0.3 seems fine to me but I am not sure what the normal range is. At idle in regen, some diesel designs inject fuel in exhaust or delay the injection time to push some unburnt fuel to exhaust and heat it up. Is this the case for TDI engines? Can th...

I also caught the moment when regen mode ended and car returned to normal. Here is the data of this moment:

I thought ECU was continuously monitoring the injection rate and adjusting accordingly. Reading with throttle is not valid in that case. Injection error readings without regen are around 0.1-0.3mg/str. I attached 2 examples. Since RPM sweep with constant throttle happens only in regen, I was thinkin...

True, injection deviation is a lot at idle during regen. But it is almost 0 when given some throttle in the regen and it is always close to 0 outside regen operation. Do you think it is stemming from the injectors? I couldn't explain why the deviation is high only at regeneration idling.

I have a Polo 6R1 with 1.6 TDI 90hp CAYB engine. I am experiencing some weird behavior but there is no error code stored in the ECU. Firstly, there is intermittent rough idle issue. Sometimes car runs very smooth without any shaking. Sometimes it runs smooth, starts shaking for a short time, returns...