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P0420 Issue
My CEL came on a few days ago and I got a single P0420 code. Nothing changed in car except for I wired a sub in and the reset my computer by having it unplugged at the same time and the light didn't come on until a few days after that. From my research people say...
Cat
1st o2 sensor
2nd o2 sensor
Small misfires, chk ignition system
Im tryin ta fix this on the cheap as I'm selling soon and would rather not spend much time or money on this one though I do want to fix it. Where should I start? (the rotor and such would be a good place obviously since it's free) But after that? Its a 97 dx btw, all stock. Thanks in advance for the help.
And I don't suppose my amp could be causing some sort of power draw that robs the ignition system of power could it? Maybe a dumb suggestion, its a good 600w amp though and im running stock alt and batt. Just a thought. Thanks.
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