ever since i put on my test pipe, my check engine light has been on my car is an obd2 and there is a o2 sensor in my cat, i put it in the test pipe and of course im still throwing the code does any one know how to get rid of the code? i have also tried resetting my ecu it goes away until the exhaust heats up, what else can i do?

 

Run an O2 simulator for the rear o2 sensor, or take off your test pipe which is giving you approximately .00023 HP.

 

yeah i would put the stock cat on but it is sooo rusty the bolts would probably break. i think the stock cat would probably make me lose hp though since it is a smaller diameter. what do you think?

 

bump

 

bump