OK here is what happens, i'm usually sitting at a red light or anywhere for that matter and I slightly rev my motor(to like 2k), anyway sometimes it will backfire out of the intake manifold. All you can here with the hood down is a thump, but with the hood up it's like BAMM POW. Anywho, what could be causeing this. I'm sending code 10 and 5(air intake temp, and idle speed, I think?) Any help would be greatly ,(well)helpful. Thanks