Topsie
Member
Okay, so my FSI Sport has had a misfire on cylinder 3 for a while now, occasionally it will throw a random misfire in there but generally always cylinder 3. I've done the following to try and resolve the issue;
Swapped coil pack cylinder 2 for 3, misfire didn't follow the coil pack.
Changed all spark plugs - cylinder 3 didn't look any worse than the others and all were tan in colour with no soot.
Cleaned both the earth on the rocker cover and the earth point under the OSF headlight.
All this has made little difference...
Symptoms while driving are a complete lack of power (but doesn't sound or feel like the car is misfiring) with occasional 'moments of clarity' where the car runs fine.
Also have P1031 - Flaps not reaching setpoint, don't think this is effecting performance, the arm is free to move and doesn't appear broken, maybe the solenoid? But this doesn't bother me too much, i don't think it's related.
Any ideas? I'm going to carry out the dreaded compression test, but owing to how clean cylinder 3 was I'm hoping this will reveal nothing new!
Nick
Swapped coil pack cylinder 2 for 3, misfire didn't follow the coil pack.
Changed all spark plugs - cylinder 3 didn't look any worse than the others and all were tan in colour with no soot.
Cleaned both the earth on the rocker cover and the earth point under the OSF headlight.
All this has made little difference...
Symptoms while driving are a complete lack of power (but doesn't sound or feel like the car is misfiring) with occasional 'moments of clarity' where the car runs fine.
Also have P1031 - Flaps not reaching setpoint, don't think this is effecting performance, the arm is free to move and doesn't appear broken, maybe the solenoid? But this doesn't bother me too much, i don't think it's related.
Any ideas? I'm going to carry out the dreaded compression test, but owing to how clean cylinder 3 was I'm hoping this will reveal nothing new!
Nick