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P0422 Diagnostic Trouble Code Discussion for November 2010

Catalyst Efficiency Below Normal (Bank 1)


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Trouble Ticket Help Requests for DTC P0422
Help Request Posted
1999 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWMA63B5X
P0422: Main TWC efficiency bank1 below threshold. Just a quick question here guys. I cannot get my main scantool to communicate with this VW. I used my emission test machine to get a code. So, I cannot access my regular database in the scantool. My guess is that this refers to the Cat. Conv. I appreciate a de...
November 04, 2010
1999 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWMA63B5X
P0422: Main TWC efficiency bank1 below threshold. Just a quick question here guys. I cannot get my main scantool to communicate with this VW. I used my emission test machine to get a code. So, I cannot access my regular database in the scantool. My guess is that this refers to the Cat. Conv. I appreciate a de...
November 04, 2010