I have a situation as always when you buy someone else's race car:

I have a 91 crx si with a sohc zc w/headers, exhaust, some racing cam, y8 manifold, custom cai, msd 6al ignition, fpr, bigger injectors(not sure what size).

My problem: Throwing a code 1 and 20, and idle's around 1100-1200...seems to have plenty of power...is this symtomatic of this type of setup or should I be fixing something?

TIA!

 

look in the faq section. tons of info and this questino has be covered many times.