i just installed my resonated test pipes with a set of non foulers and i got a check engine light after about 500 miles. i have an 03 performance. how can i fix this?

 

try resetting the ecu, if that doesn't help you may have a damaged sensor. In my 03 I didn't use nonfoulers and didn't get a cel

 

There may not be a fix.

 

may not be a fix as in, the only way to get rid of the light is to put the cats back in

 

Try checking the code. When I installed mine, one sensor was jacked so I had to buy another. Now no light.

 

+1 free @ local autoshop.

 

ok, the guy who sells the non foulers on here ... are they good?

 

Your '03 is throwing a code

As mentioned above, have you tried resetting the ecu?

And yes,
Zexy's Non Foulers work well.. I purchased a set for myself when I ran TP's and I did not throw a CEL.

 

yea, i thought 03s are not suppose to thro a CE:, i didnt check what the code is yet tho, but im guessin its the test pipes .. would u get a check engine light if there is low oil in the car?

 

Might try putting some stainless steel pot-scrubber mesh (Choreboy) inside the non-fouler. Has helped some people with persistent codes. Or try adding another non-fouler to the stack...

 

how much was it? I'm having issues and might be a bad sensor...

 

like $50

 

Zexy? Yes. Bought mine months ago. Good quality. Good fit.

 

Work most of the time, but they aren't 100% fool proof. CEL's pop on 100% stock cats from time to time as well.

+1 on the stainless steel wool trick. Use 434 fine stainless steel if you have a source for it.

 

Did you implement a fix?

 

I bought it off a member on here for around $50-$60.

 

brillo pads worked great