scan tool shows reading po420,need to know what is bank 1 and bank 2,thanks
- posted
18 years ago
scan tool
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- posted
18 years ago
Year and model of vehicle and I can look it up wih software I have.
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- posted
18 years ago
bank 1 =drivers bank2=passenger
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- posted
18 years ago
1998 chevy p/u 1500 5.7 scan tool reads PO420 which reads catalyst system efficiency below threshold (bank 1)can you tll me what it means so i can fix it,thank you very much
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- posted
18 years ago
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