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Have you checked compression on that side? Do that and report back. Low compression will throw misfire codes. Is it a hard misfire that you can feel, or feels like it runs fine?
Ive not done a compression check yet. It idles good upon startup then it idles a little rough at temp, not like diesel rough but you can tell its there. Very wheezy on the low end acceleration but runs smooth at any given speed without hesitation.
well do a compression check and well do a compression check and let's see what the numbers look like, also see if you can detect where the air is leaking from oh, I suppose it could be low compression due to a burnt valve or some other issue with the valve train
All the misfires are coming from drivers side with the exception of Cylinder 3 after O2 replacement.
You have replaced:
Spark Plugs NGK gapped at .44
Coil Packs
Spark Plug wires
O2 Sensors Upstream
You have:
Seafoam in intake
Cleaned MAF
My recommendation is to swap spark plugs with cylinder 1 and cylinder 2 and check again
Because cylinder 3 misfire went away after replacing upstream O2, I think there might be something there but, let's do the spark plug swap and see what happens.
A fellow who found me at home depot parking lot had problem not passing inspections lately. I installed the relocation kit for them over a year ago and here are the codes from yesterday. The pattern here where the dead O2 sensor was ended up burning the ip of the plugs and only one side of the engine. Replaced plugs and O2 sensor, reset and drove 90 miles with stop/start intervals. No codes after.
hopefully they pass inspections tomorrow.
fello
Last edited by LR03NJ; Feb 18, 2019 at 11:51 AM.
Reason: add message
