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2 questions
4
votes
1
answer
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CEL code 43 on 1992 Civic
I'm getting CEL code 43 after doing a lot of work on my car (changing the head gasket, which involved removing and reattaching lots of exhaust and intake components, and replacing the fuel filter and ...
12
votes
3
answers
111k
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Check Engine code P0420 Catalyst efficiency below threshold bank 1
After months of normal driving with no problems, my 2003 Honda Civic EX check engine light came on during a long trip. Got it scanned and it's P0420: Catalyst efficiency below threshold bank 1. They ...
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