[lora marie]

I just bought it. i had it put on a machine to see why the check engine light was on before I bought it. the man said it was the EGB valve, and it's causing the service engine light to come on, and also the O2 censor is not reading right so i am using way more fuel then i should be. I have been told that I can just have it cleaned out, but the thing is the man that was going to do it was getting ready to break the bolt because it wouldn't give.































Does anyone know of any kind of chemical that would resolve this situation? I can't afford to have it fixed at the time, but I also can't afford the gas it's using...