Hello everyone, my '07 Fit Sport recently started throwing a check engine light at me, I went to autozone to have the codes checked out, and Ive reset the code and it comes back on only driving up steep hills. Here are the codes I got.

P2610 ignition off internal timer...
P1172 sensor out of range high
P2A00 sensor range performance.

Here is some other info that may or not be relevant to the case.

A few weeks after I bought the car used I had to have the catalyic converter replaced under warranty because I was getting some sort of emission code (cant remember which), also I have a the home made RAI installed which I triple checked so I dont think that has to do anything with it.

Please Help, I don't want my entire tax return going towards replacing an ECM which is what autozone suggested it was. The main reason I think it might be something else is that after i reset it, it wont come on at all until I climb a steep hill getting to my house, I can avoid it coming on at all if I just avoid that hill.