Hello everyone,
new to the forum. Driving a 2012 1.6tdi with around 120K km (sorry for metric units but I am based in Belgium).
Purchased the car used and it was doing normal regen, you can notice at idle the rpm climbs around 1000rpm and the consumption going from 0.4-0.5 l/h to 0.8-0.9 l/h. Same behavior even after EGR software delete and DPF cleaning.
This year I had to replace the cam sensor and I have taken the opportunity to replace also the cam belt kit.
After this maintenance I have also started to notice some weird behavior at idle, engine rpm would climb to 1000rpm but consumption actually decreasing to 0.2 l/h.
I cannot say for sure if this repair is the cause since I remember seeing something like that during winter for a couple of times. At the time I thought battery was getting low and the higher idle was to help the alternator recharge, however, after the repair, I have not seen again the "standard" regen condition of higher idle and higher fuel consumption.
Last time it happened, I have connected ODBeleven and noticed STATE RGN PF=1. Does it mean a regen is taking place? if so why the lower fuel consumption?
Out of curiosity I have read also the correction factor for the injectors:
Normal idling condition:
cylinder1= -0.68mg/stroke
cylinder2= +0.64mg/stroke
cylinder3= -0.04mg/stroke
cylinder4= +0.12mg/stroke
1000rpm idel and 0.2 l/h displayed on the MDF:
cylinder1= -3.34mg/stroke
cylinder2= +2.8mg/stroke
cylinder3= +3.3mg/stroke
cylinder4= +2.4mg/stroke
Sorry for the lengthy post, I hope somebody could share some insight into this and help me to embrace more the philosophy "drive more, worry less".
Many thanks8