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P0422 Diagnostic Trouble Code Discussion for May 2005

Catalyst Efficiency Below Normal (Bank 1)


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Trouble Ticket Help Requests for DTC P0422
Help Request Posted
1999 Volkswagen Jetta GL 2.0L Poor Idle Quality VIN: 3VW5C29M4X
please help. car came in as a "someone gave me the car" car will not idle cold or accel. cold. if you add fuel it will run and accel. if i pinch the return hose it will idle. performed much needed complete tune up, didnt like f/p so i replaced the pump...
May 04, 2005
1999 Volkswagen Jetta GL 2.0L Poor Idle Quality VIN: 3VW5C29M4X
please help. car came in as a "someone gave me the car" car will not idle cold or accel. cold. if you add fuel it will run and accel. if i pinch the return hose it will idle. performed much needed complete tune up, didnt like f/p so i replaced the pump...
May 07, 2005
1999 Volkswagen Jetta GL 2.0L Poor Idle Quality VIN: 3VW5C29M4X
please help. car came in as a "someone gave me the car" car will not idle cold or accel. cold. if you add fuel it will run and accel. if i pinch the return hose it will idle. performed much needed complete tune up, didnt like f/p so i replaced the pump...
May 04, 2005
1999 Volkswagen Jetta GL 2.0L Poor Idle Quality VIN: 3VW5C29M4X
please help. car came in as a "someone gave me the car" car will not idle cold or accel. cold. if you add fuel it will run and accel. if i pinch the return hose it will idle. performed much needed complete tune up, didnt like f/p so i replaced the pump...
May 07, 2005