2000 vette throwing 4 codes P0137, P0157, P0420, P0430
11-05-2015, 09:35 PM
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2000 vette throwing 4 codes P0137, P0157, P0420, P0430
I just bought a 2000 FRC and it's throwing four codes. P0137 & P0157 which are 02 sensor codes. Then it throws the p0420 and p0430 which are cat codes. So, my question is why would it be throwing all four codes? Do I start with replacing the sensors and see if that clears everything up? Or do I need to look into the cats? Any information on how to proceed is appreciated! Thank you!
