I've been throwing this code since september of last year. I discovered about a month ago that I was throwing this code due to a huge leak in my intake manifold. The car would throw the code at idle and then idle weird. When I took the intake off to replace it I noticed a massive amount of fuel in the intake manifold and my spark plugs were fowled up and needed replacing. I put about 5000 miles on those plugs. I replaced the manifold and installed the headers and the code has not gone away. I switched out the MAF to see if that was it and it still throws the code. My headers leak a little bit and I'm wondering if that could cause the code. My car has only has 17500 miles on it, but I'm thinking that the o2 sensor could have gone bad. If anyone has any ideas what might be causing this problem I'd greatly appreciate it.

 

code comes back after clearing it? Exhaust leak could definitely cause it. I would also check the MAF Screen is not damaged or turned.

 

I checked the screen it looks fine, if I do have a leak its not worse then anyone else has with the headers, the code does come back after clearing it

 

any ideas?

 

Recently I've also been throwing P2A01 code, I'm going to try replacing the o2 sensor on wednesday, I think the extension supplied for the o2 sensor for the headers could also be causing the problem