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23/04/2021 8:51 am
Topic starter
I had a complete tune up done on my car but this code did go a way now I have a another code show up in it a p0420 now I some help try to figure this out so can you please help me
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It was on there before the tuneup now I don't know what to do next and this is 1997 chevy camaro
1 Answer
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23/04/2021 8:57 am
Did the P0300 show up before or after the tuneup?
Fix the misfire first. Odds are that’ll simultaneously fix the cat code too.
Start here - https://carkiller.com/scottykilmer/qa/misfire-4/
