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P0422 Diagnostic Trouble Code Discussion for October 2013

Catalyst Efficiency Below Normal (Bank 1)


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Trouble Ticket Help Requests for DTC P0422
Help Request Posted
2003 Volkswagen Passat GL 2.8L Misfire cyl #3 VIN: WVWTH63B63
P0422: Cat converter efficiency b2. THIS 2.8L V6 HAD A CONSISTENT MISFIRE AT IDLE ON CYL#3. THE MISFIRE COUNTER JUST KEPT COUNTING UP ON THE VAG-COM AS THE ENGINE SAT IN THE SHOP BAY RUNNING AT IDLE. WE SWAPPED THE SPARK PLUGS, FUEL INJECTORS, CHECKED THE COMPRESSION AND THE FUEL PRESSURE, SMOKE...
October 08, 2013
2003 Volkswagen Passat GL 2.8L Misfire cyl #3 VIN: WVWTH63B63
P0422: Cat converter efficiency b2. THIS 2.8L V6 HAD A CONSISTENT MISFIRE AT IDLE ON CYL#3. THE MISFIRE COUNTER JUST KEPT COUNTING UP ON THE VAG-COM AS THE ENGINE SAT IN THE SHOP BAY RUNNING AT IDLE. WE SWAPPED THE SPARK PLUGS, FUEL INJECTORS, CHECKED THE COMPRESSION AND THE FUEL PRESSURE, SMOKE...
October 08, 2013