hey just ordered the stage 3 pcm from gm and i forgot that zzp has turned my rear o2 sensor off because of the zzp high flow cat was throwing a cat code so now when i plug in the stage 3 my check engine light will be back on right? then by searching on this here i find out that the stage 3 is not even unlocked or tunable for that matter something about that its stand alone or somthing... any help would be appriciated...

 

Send stage 3 back...it isn't tuneable and unless the stage 3 pcm turns off the 02 sensors which I very well doubt it the check engine light will be back on.

 

is there any way to keep it i wanna run nitrous

 

stage 3 turns off the rear o2 sensor, thats one of the perks for it not being emissions certified

 

Just order the Cel Eliminator from Weapon R for only 60 bucks or something. I haven't thrown a code one time w/ it on in the 2 years I've had the C.A. cat-less downpipe.

 

That's a rip.

Anyone can make one for $5.

 

thank you for your replies i hope the rear o2 is turned off if not im gonna have to send it back or sell it because i cant find anywhere that has a 3in high flow cat that wont throw a p0420 code maybe thats one of the issues correct me if im wrong but i belive the cat works by forcing all the exhaust through those tiny holes thus creating heat wich in turn burns hydro carbons and in high flow applications it dosent create enough heat and thats why you get a cat effeciency code...

i tried a cel eliminator from ebay before i had custom tunning and it worked for about a half an hour instead of the light commong on in a mile or so it came on still though maybe i got a bad one?

are you sure can you or someone confirm this i tought it wasent "torture tested" thats why it wasnt street leagal

 

buy spark plug antifoulers and drill one out, worked for me with my downpipe.

 

i was really thinking of trying that lots people have good luck were did you get yours

 

autozone, been CEL free ever since.

 

i got one of those CEL eliminators w/ my weapon-r header and i still keep getting p0140, but the wires on my rear o2 sensor are a bit freyed from trying 2 other CEL eliminators in the past so that might be it

 

zzp deletes the code for a small fee