o2 sensor problem check engine light. (what can happen?)

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08-26-2008, 01:43 PM

#21

B_Real45

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Join Date: Dec 2007

Location: South Florida

Posts: 2,603

Quote:

Originally Posted by calvinhuh

srry.. hmm then im not sure what the problem is for u.

back to me.

is it possible that im throwing the CEL for having aftermarket header.? again? even though i already have anti fouler on and everyting.

To answer that you need to know the code you're throwing.

If the code has anything to do with Bank1 - then that's your primary O2 sensor.. so no, it's not the issue of having a header and an antifouler that isn't working properly.

If you get the code for the cat not working, then yes, it's the issue with your antifouler.. you may need to double up on the antifouler.

08-26-2008, 06:41 PM

#22

calvinhuh

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Join Date: Apr 2008

Posts: 98

hmm one of the mechanic guy i went to for checking the o2 sensor and stuff
told me

that hes sure thats its just cuase i dont have any cat.

he told me i was throwing 2 codes . 1. bank 1 o2 sensor was bad.
2. no cat.

but what i dont understand is.. why isnt the anti fouler working.? it worked fine before..
has this happened to anyone?

double up the anti fouler?