Keep thowing CEL with OBX 4-1 and Defowler

delguini

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Contributor
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Protege 5
Hey guys, i recently got a set of OBX 4-1 headers, so i installed them. First time around i completely forgot the defowler fix, so i threw a CEL. i then took the spark plug defouler, drilled the 1 inch hole, and installed it. Reset the code with my OBD2 scanner and the CEL came back. Thought maybe i had to reset the ECU so i left the battery unplugged over night, drove the car for 150km and the CEL came back on again. Am i doing something wrong here?

Thanks
Joey
 
Dang it, i know where i screwed up!!! Just read the thread on the MIL fix over again, and i noticed you have to put BOTH defoulers on!!!! Sorry for the useless thread
 
im pretty sure..dont worry, im a space case like that most of the time...
 
I had the same problem with my obx headers, i Eventually just said forget it, i have had no problems with mine, but my light is still on... I dunno, the light never hurt anything... depending on how much you care, you could try my quick fix solution with a little electrical tape over the light... lol bad look but at least you dont see it. I am also looking for a fix to this problem... Let me know if you figure it out at all? Good Luck.... PR5 FOREVER BABY!
 
I just extended my O2 wires and put my second O2 sensor behind what was considered the second cat at the time.

NO CEL's for me.

My car has a header and my truck has headers.
 

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