belgradeperformance@yahoo.com

Hoping to find a little help, 10 Audi A4 2.0t codes are P050600, P030100,p030200, p030300, p130a00, and p03000, changed plugs they where carbines up really badly with white powder, test coils all good. Tested fuel pressure from tank 48lbs. Tested for vacuum leak none found. Car does not start hard so not suspecting high pressure pump. Has anyone had similar issues ? Suspecting injectors but don't want to just keep throwing money at it, maybe someone has an idea. Thanks

Prospeeder

Crankcase vent valve. Try removing the oil cap while its running. If you cant take off the cap, because theres so much suction, the vent valve is the issue. Sounds like a big air leak to me. Go to live data and watch the short term fuel trim, is it trying to add like crazy, like +25% thats it compensating for a lean condition.

transman

Good info posted above. You definitely have false air coming in somewhere.


one place I find a common leak on these is the rear main seal pulling in false air. Its worth calling around to get a smoke test because there are some crazy places these cars can leak.


hope this helps, Connor