Engine Misfire: Get a Professional Diagnosis

Hello, I have uploaded https://community.dieselschrauber.org/en/viewtopic.php?p=138295 diagrams showing the comparison of sensor values 13/18/23 with a cold/warm engine and with the air conditioning system active/inactive. I hope that the diagrams clearly show the cause of the defect (rough idle).

Thank you.

moby

Based on this information, I can only see that cylinder 3 consistently has a slightly higher correction value, but it's still within the tolerance range (+/- 2.8 mg, if I recall correctly). It's impossible to determine whether this is due to poor compression or partially clogged injectors.

MWB 18 and 23 are normal.

It's important to always log the PDE-Check-MWB data along with MWB1, so you can see the current engine speed and (average) injection quantity. The fact that only 2 MWB (besides 1) are available is a system limitation.