Dear Scotty.. 2 weeks before the car started idle shaking and rpm between 700-900 with misfire P0300 code and knocking sound from engine and it got worse within a week
I replaced ignition plugs but same.. Then I checked fuel pressure and it was ok.. then I clean throttle body inlet valve from back of engine and replaced the engine breather valve.. there was oil leak at breather valve.. so I clean it good.. but the issue remains the same.
I removed MAF sensor and there was no vibration in engine but while driving a 100 meters the car chocked bcz of rich fuel.. I cleaned the sensor and instal the plug again.. Now the vibration has become more worse and car stops at startup as RPM goes above 1.5 and down to 400 and zero while starting.. I have to press pedal a little to not let it die..
Then tonight I checked EGR valve outlet and there was no air coming out..
Now I am confused to replace MAF sensor or EGR valves.. or if any other possibility?
Well those damn German cars are so complex when I work on them I put in a special computer program on my laptop and do a road test and it gives me a computer running analysis of all systems if you're near Clarksville I do that for free make a cool video out of it. If not you're either going to piss in the wind guessing with parts or find a guy in your area who knows how to work on those and unfortunately they are not like me and they usually charge about $140 an hour labor
