I just replaced my catalytic converter on my civic about 10 minutes ago because my other one was bad. Well I put it on correctly and now it's worse than it was before. It's still bucking and stalling like it did with the other one but now it's also smoky and has a high pitch. I can't even go down down the driveway without it turning off. WHAT DID I DO WRONG?!
The computer result also came out as a bad O2 sensor... would the O2 sensor make the squealing sounds though? I have not changed the O2 sensors yet.
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