HELP!! Missfire Cylinder 2

[MrHeyZeus]

Hey guys!

I have a B7 S4, I replaced spark plugs and coils about month ago, car was running pretty strong, but had a bad O2 sensor for a while (don't know if it's related) I finally replaced it last week. Next day it starts misfiring, took it back to my indy scans it and says cylinder 2 misfire. Took it back home, removed coil 2, and took out spark plug and it was pretty bad, so ordered new ones. Just installed it and let it idle for about 10mins then check engine light started to flash again which indicates misfire again...

Should I replace the coil in cylinder 2? where else should I look for issues?

Is there anyone near Bronx who has a VCDS to scan for all the codes? Thank you all for reading, hope we can find a solution!

[gcoy]

Miles?

[MrHeyZeus]

140k


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[jakeoboy67]

try switching the coilpack around , to see if the misfire follows (bad coilpack)
try switch the sparkplug with another one, see if the misfire follows(bad plug)

do this with a code reader or VagCom

[MrHeyZeus]

Ok, I'll pick up new coils tomorrow and I'll check it out to see if it work hopefully it fixes the issue...


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[MrHeyZeus]

So it turns out my fuel injector in cylinder 2 wasn't seated properly, which was causing the misfire!


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