Misfire after check valve

[Craz1000]

Replaced the oil check valves a few days ago. Put motor back together car started up ideled fine. Drove down the street car started misfireing like crazy on every cylinder except #3. Replaced all coil packs and plugs still no change. Took motor back apart this moring found nothing bad or anything i may have forgotten. Put back together still misfireing. Injector resistance tested fine and vag-com was able to activate each of them ok. I'm out of ideas. Looking for a second opinion.

[chain_slappins4]

Make sure you didn't accidentally knock off a vacuum line, mine did the same thing with a cracked line..

Sent from the S4 with a Tap!!!

[Craz1000]

I thought of that too, all lines are ok. Most were replaced as i was putting motor back together the first time.

[Craz1000]

Just noticed, exhaust smells very rich, almost as if gas was coming out of tailpipes

[chain_slappins4]

Maybe try to reset the ecu, maybe your fuel timing maps got messed up

Sent from the S4 with a Tap!!!

[Craz1000]

Tried that earlier today. We also did a relearn on the trottle body, put back the old intake manifold gasket. Also car is running lean

[badger.]

Any codes? Other than the misfiring cylinder ones.