2011 camaro check engine
I just bought a 2011 camaro rs and the check engline light was on . When I went to auto zone the codes were p0420 bank 1, p0430 bank 2 and showed up 4 codes . The dealership said the cost was gonna be $1800 but I don’t have money like that, I’ve notice that the car rpm bounces a little and it idles I bought some 02 sensors online and having a mechanic put them in Friday . Any advice ???
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