audiawd310

Im having the left bank misfire and im getting codes

p2296
p0346

and also the misfire codes for cylinder 4 5 6 which is the left bank.
I already replaced the left side fuel injection harness which connected to the fuel pressure sensor and also the high pressure pump.

twopedalwarrior

funny you didn't start with the easy stuff like spark plugs or the ignition coils

akingzkid

Hello,
Did replacing the fuel injection harness fix your misfires? I am having misfires on all cylinders but don't have any codes and I don't know where to start. Could be several things causing it. Thanks.

uberwgn

Guys, as twopedal suggests, these cars are quite sensitive to spark plugs and coil packs. Look up in your history to see when they were last swapped out.

akingzkid

PO changed plugs about 58k miles ago so mine are due. No clue on when the coil packs were done. Just pulled my plugs and looked at them and they don't look bad. Posted a pic and someone else here agreed with me.

Link to post with pics https://www.audiworld.com/forums/a6-...plugs-2948908/

Of course I can't use "looks" as a definitive measure of the plugs condition. However, I have seen waaaaaay too many posts on here and Audizine where people who were having misfires changed all plugs and all coil packs (and other things) and STILL had misfires. That's why I'm skeptical at just spending $500 to change my coil packs and plugs.

Thanks for your feedback. Any other ideas?

jeffpuxx

The plugs should be replaced anyway.

Why don't you start there?

Cheap and easy option that could work.

akingzkid