starbrite
10/20/2006 12:17:35 AM
I have replaced my factory headers on my 2001 eclipse rs with an obx header, now i am throwing a p0421 . Is there a way i can get around that and stop the code or do i need to find a header with a cat on it. I was wondering if i could just find a small cat and put it on right after the header....i dunno what to do...need some help please
Sebba
10/20/2006 12:22:56 AM
What does that code mean? Did you get it checked at autozone or something?
starbrite
10/20/2006 12:28:00 AM
its warm up catalyst deficiency (bank 1) and no i didn't get it checked at auto zone... the dealership told me that it was throwing that code because there was a factory cat on my headers and by removing that when i put aftermarket headers on that instead of having an 02sensor before the cat and one after...now i have two before since i eliminated the cat on the headers. they aren't going to read properly and stop throwing the code until i have that first cat back.
