i just changed my header and now its throwing exhst code. not sure whats wrong i disconected the battery for 15min to reset and stil throws codes. its a cobalt addiction header to a 3 inch zzp down pipe into 2.5 exhst. need help thanks

 

welcome to the world of modified cars

you will most likely have to get it tuned out

 

thanks

 

It would help if you actually posted the code. It's either lean condition or Rear O2 cat efficiency. If it's the first, get a tune, if it's the later, you can either tune the code out, or trick it with a drilled out spark plug fouler. Been running mine catless with the fouler since Saturday and no codes. Can pick them up for 3 bucks at any auto parts store, look for Help! brand PN 42009. Drill it with a 7/16" or 1/2" bit, screw it on and put that into your pipe.

 

get a CEL eliminator....

 

i left the battery disconnected over night and have had no light for 2 days might get tuned on the 18th at tune time