have you reset the computer?

Where did you get the MIL's from?

Run your codes yet?


I had no issues with my catless setup. I got my MIL's from www.dallasmustang.com

Park Muffler did your catlass setup right?

Check to make sure that all the o2 sensors are in tact. I had 2 of the 4 burned off which made the car run like sh!t and gave a constant CEL.

Let us know, your car has alot done to it to just give up on it, I see it around everynow and then, it looks great and has an awesome sound! Don't give up on it.

2005 Focus ST