Apologies if I'm wrong place but the car is.low on power she's revs out at 4000rpm I think it may be in limp mode but I'm not sure. The check engine light is on also so i need to figure out y. Any ideas please and thanks. It's shooting out air as well so there was in a in the resonater pipe but i fixed that so that's sealed again it's better but still not great. I seen the previous owner joined to pipes together for the dump valve so that's where my air leak is I think. Must look in more detail tomo again. I seen a thread here before I joined about limp mode can someone forward it my way please and thanks