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P0491 Diagnostic Trouble Code Discussion for June 2008

Secondary AIR System Insufficient Flow Detected (Bank 1)


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Trouble Ticket Help Requests for DTC P0491
Help Request Posted
2004 Dodge Stratus SXT 2.4L MIL Lamp on VIN: 1B3EL36J44
P0491: AIR System Performance. ... The car came to us with the air pump stuck on all the time (even with the engine off) and a P0491 (Secondary Air Injection System Insufficient Flow) code. We replaced the air pump rely and for good measure replaced the air pump check valve. The problem see...
June 06, 2008
2004 Dodge Stratus SXT 2.4L MIL Lamp on VIN: 1B3EL36J44
P0491: AIR System Performance. ... The car came to us with the air pump stuck on all the time (even with the engine off) and a P0491 (Secondary Air Injection System Insufficient Flow) code. We replaced the air pump rely and for good measure replaced the air pump check valve. The problem see...
June 06, 2008