Two codes PCM
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Safety Car
Joined: May 2003
Posts: 4,961
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From: Vette-hid.com Lost in DFW texas
Cruise-In V Veteran
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St. Jude Donor '06-'07
Two codes PCM
P0420 TWC System Low Efficiency Bank 1-A
P0430 TWC System Low Efficiency Bank 2-A
I know what they are but what do I need to do to find out what is going on.I reset the codes and they didn't come back but I want to know what I should check.
P0430 TWC System Low Efficiency Bank 2-A
I know what they are but what do I need to do to find out what is going on.I reset the codes and they didn't come back but I want to know what I should check.
