i just put on my atp 3" down pipe and i also got new o2 sensors, is my check engine light suppost to be on because it is.......if so how do i make it where it wil go off but still work if something is acually wrong with my car?

 

wait so u have no cat? if so then yes u get a cel but there us a mod u can do to get it to go off

 

yeah no cat....so it should be on but theres no way i can get it off just for that?

 

yea theres a mod u can do...search

 

OK!

Goto Autozone,Napa, or whatever and get a pack of spark plug non-foulers .. I believe they are 18MM? or 14MM....

either way..

Now, take one of then and hone out the top part, so the o2 sensor can fit in it.

Screw the o2 sensor into it.

Screw that non-fouler into the the other fouler that has not been modified.

screw in the non-foulter back into the post-cat location.


Let me know if ya need something!

 

what is down pipe ? you mean test pipe or cat delete pipe ?

if you got it from atp, you should not got cel. I have 3" test pipe and no cel. it is already has 2 holes for the O² sensors.

 

I think your just luck Arif... or your 2nd 02 sensor is bunged..

He is getting the CEL because of cat inneficiency (sp?)

Do waht I said. The ATP test pipe has holes yes, but they will not prevent a CEL