Can someone please help, I have a a4 b7 2.0tfsi with an autotech hpfp, I took my car to Revo hq in Daventry,
they mapped the car and took it out to log data and the fuel pressure was around 110 and they said it should be around 130,
iv stripped the pump down to check the internals and i cant see any wear, there was a small circle imprinted on the cam follower
could this be an issue? or does anyone have any suggestions on what the problem could be?