I have been trying to get to the bottom of this code: P2188

So far i have done a Carbon-buildup cleaning, New OEM injectors, New spark plugs, New MAF sensor, New PCV valve.

The car hesitates and doesn't always start on the 1st try if it sits for a while. Once its on and turn it off, it starts right away.


I thought it was a MAF problem but i just replaced it with a new OEM one and still having this issue.



Can someone direct me to a DIY on how to VAG-COM the HPFP and check if its working correctly?