Hello everyone,
I came across the following while searching:
/viewtopic.php?t=5417&highlight=fuel injection start ael
Today I checked the injection timing on my 2.5 TDI AEL engine.
The problem, as with the previous link, is that the diagram for AAT/ABP is read at 1200/min.
This speed is automatically set to 1200 RPM in function 04 (basic settings) and working group 000.
However, the AEL measurement is taken at 1000 revolutions per minute.
Which diagram could I use for this, or is there one specifically for AEL at 1200/min?
I once read that the diagram and settings can also be adjusted using VAG-COM.
My values fit within the 1200/min graph!
I measured:
Display field 2 = injection start: approximately 27.
Display field 9 = Fuel temperature: approximately 150.
According to the diagram, I think the injection timing might be too early because it's at the lower end of the scale?
Ideally, it would be the dashed or...
Regards,
Peter.
Translated on 21-07-2026, 18:59.
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