i installed a dp and a cat eliminator on my 05 sti. now i am getting a cel. i know of this being a problem with obd2 cars that eliminate the cat, most people use a 02 similator to get rid of this problem. and i have heard of a way to get rid the cel by getting a type of relay from radio shack and putting it on one of the wires of the o2 sensor. has any one else heard of this and can you tell me what i need. other option is to get a o2 similator. does any one know of anyone selling them cheaper than 50 dollars. thanks for any help

Gruppe-s sells a cel fix for $15.

Nick

there's a mechanical fix that involves spark plug spacer thingys that i have waiting to go in