jeff

iTrader: (1)

Hey guys i just picked up RRM cel eliminator which did a good job of removing that check engine light but if i were to replace my cat with a testpipe would that cause my check engine light to come on.. even if i have the spacer installed.. thanks

jeff

Synthrocker

Not sure, Ive never reall looked at our cat, but if the O2 Sensor is IN the cat, it would cause a CEL, if its after, I dont see why it would.

DemisedGabe

iTrader: (2)

well i dk i have a testpipe, and cel eliminator.but still gotta cel, that i need to go check the code.

kreionic

iTrader: (14)

depends on which one you get.

Blacksheepdj

iTrader: (88)

NO!

Know what you're talking about, folks. The second O2 sensor is in FRONT of the cat converter. The two sensors basically just test how well the cat in the header is working.

Synthrocker

Thanks for clarifying

My O2 on my last car (VW) was directly in the middle of the cat


So we having nothing monitering the cat eh? Good, if this one melts on me I can hollow this one out and not get a CEL

kfos01

iTrader: (3)

If the '06 exhaust is the same as the '05 (I'm assuming it is) the stock cat is welded to the stock downpipe. So, unless you are getting a new downpipe I don't think you can even put a test pipe on your car. In that case your CEL may come on. I just put the Kamikaze header and downpipe with a test pipe and my CEL came on.

ROCK

iTrader: (67)

Test pipe will not cause a CEL. You do not even need a CEL eliminator. Since you have a CEL eliminator, it must be for header etc... Just keep using it.

ROAD/RACE

DemisedGabe

iTrader: (2)

i have the same setup, do u have the cel eliminator?

kfos01

iTrader: (3)

No sir. Does it get rid of the CEL with our setup? Also, which o2 sensor does it go on?

DemisedGabe

iTrader: (2)

it goes on the 2nd, just after the downpipe.But mine is still on, but i dk why, i need to run a check on it at the auto zone and see what it actually is...

Blacksheepdj

iTrader: (88)

Gotta remember - the CEL fix you're using is just a spacer. It's one of those things that might work and might not.

If you really want to get rid of the CEL/SES, you might want to go with an electrical fix to fool the ECU. Something like the Pony Express MIL eliminator...

jeff

iTrader: (1)

well the spacer fixed my CEl caused by my headers.. but if i were to replace my cat with a test pipe.. would the warm up cat code pull or not?

jeff

iTrader: (1)

the 03 cat is not welded to the downpipe it is instead bolted.. and yes the o2 sensor is in the front part of the cat.. so then a code would not be pulled... correct?

Blacksheepdj

iTrader: (88)

The warm up cat is the one in the header.

Look, you aren't getting this. You have the front O2 sensor, then some catalytic material in the stock header (exhaust manifold), then the second O2 sensor. Those are the only things that factor into the equation.

The rear catalytic converter does not matter in terms of CEL.