Cat-bypass and PSE mod caused CEL

[AUDIOGUY]

Steve,

I have had code 1128 before and it occurred after I did the Evo intake and B and B exhaust. I dont have a cat bypass. I cleared the 1128 once and it hasnt returned.. I have had a 1127 code for MAF or air fuel mix metering issue. I cleaned the MAF sensor and reset it this weekend with good results. You should disconnect the battery for 20 or so minutes and then reconnect it. Start the car and let the computer re-learn the system with the new intake and exhaust. This may correct the fuel air mix a little. Dont worry about the car running rough for a few minutes after you first start it. This is normal and will correct itself. Maybe this will help!
P.S. dont forget to get your radio code before disconnecting the battery. You will
need it when you reconnect power.

Best of luck!