2.5TDi Injector pump timing & Needle lift sensor.
Just a quick question on timing up the fuel pump on the 2.5 TDi:
Does the needle lift sensor need to be working when adjusting timing of the fuel pump?
I checked initially with VCDS which told me that the timing was too advanced - moved the pulley quite a few times and tested but kept telling me that the timing was too advanced - it only increased the duty cycle according to VCDS.
The needle lift sensor on the 3rd injector isnt working on mine, been putting off swapping it for a while but if its required to set the timing accurately I may aswell order one.