2005 grand prix check engine light is on?

2005 grand prix check engine light is on?


2005 grand prix check engine light is on?

Posted: 09 Dec 2012 05:12 AM PST

took it up to autozone and found out its the secondary air flow injector. What could possibly cause this? what would be the first thing to check, I dont want to go out buying a new air pump unless I know exactly its that. Could it be something simple as a fuse or a relay if so how would I check a relay? Online I read many things saying people fix the problem then it comes back on.. Just not sure were to start... If I left it alone would it hurt the engine? there is no rough idle or any noticeable difference in gas mileage

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