Hi there, first time posting here. Great site!! Helped with a few little issues already:-)
Unfortunately I haven't found a problem on this site similar to mine?
I have a 2005 4-Door StratusSXT with 70,000 miles 4-cyl.
Engine light popped on, my reader says its code P0491-Secondary Air Injection System (Bank 1)
Question is what is the Secondary Air Injection System (Bank 1) and is it something a DIY guy can handle or do I need a mechanic?
Any advice on this would be greatly appreciated, Thanks:-)
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P0491 Secondary Air Injection System, Bank 1 - Insufficient Flow
P0492 Secondary Air Injection System, Bank 2 - Insufficient Flow
Possible cause of fault
- Electrical fault in power supply or line between relay and secondary air injection pump
- Secondary air injection pump relay mechanically faulty
- Mechanical fault in electrical secondary air valve
- Pneumatic secondary air valve faulty/sluggish
- Electrical fault in secondary air injection pump
- Mechanical fault in secondary air injection pump or secondary air injection pump blocked
- Vacuum system leaking
- Air hose to secondary air injection pump slipped off or constricted
Hi John, thanks for the advice:-)
But I need a little more help? I have the Haynes Repair Manual and it makes no mention of what the Secondary Air Injection SystemIS or WHERE its located:-) ??
Thanks again for your help:-)
P.S.- Is this problem something that requires immediate attention or is it something that I can live with for a bit??
I have the same problem. Haynes makes no mention of the meaning of the code, the location of the air pump (if one exists). I am beginning to wonder if the code has some other meaning for this vehicle.
Secondary Air Injection System (Bank 1) ??
