P0422 Diagnostic Trouble Code Discussion for February 2008
Catalyst Efficiency Below Normal (Bank 1)
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P0422
| Help Request | Posted | |
| 1999 Audi A6 2.8L MIL Lamp on VIN: 4D0907551A P0422: main cat bank 1 efficencey below threshold. WE REPLACED THE ENTIRE EXHAUST W/ AFTERMARKET AND IN SHORT ORDER {200 300 MILES } THE CUSTOMER WENT TO THE DEALER WHO LOST THE EXHAUST JOB FOR SERVICE AND A MIL ON . THEY FAXED ME THE RO. AND SAID BOTH CATS WERE DEFECTIVE AT THE SAME TIME . I ASKED FOR A REFLA... |
February 06, 2008 |
