Right now I have Thorley tri-Y headers that go right into magnaflow cats then 2 into 1 collector, super 44 flowie then it dumps out the side.
What do I need to do to be able to remove the cats without throwing DTC's from the rear o2 sensors?
Ive seen o2 simulators in the past but Im not sure if thats the right or good way to do it.
Any help would be greatly appreciated!
Eric
get a nelson tune aand have him disable the 02s.go to nelsons website for info.he can do many things to minipulate the computer on youre truck.its well worth the investment.good luck
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
yeah what he said lol
Simple: 408 on steroids!
single digits coming soon!
you can drive it ok with it hooked will have check engine light burn
I looked over the Nelson website but couldnt find anything that said
doing the ECM tuning kept the truck OBD2 emissions compliant.
What do you do when emissions time rolls around? Send the ECM back fora re-tune?
Technically, removing the rear 02's, and cats, makes it illegal. Now lets say in your ''Racing'' season, you want to run no cats and a setup that isn't compliant. When ever your ''Racing'' season is over, you'll need to replace the cats and stock tune to drive on the roads legally. I have heard of shops passing vehicles with no cats on inspection, But thats a big no no. Also I have heard that because the CEL is off, it will pass obdII inspection. I have heard that some people don't check under the vehicle to see if cats are there. Big no no. I have also heard of bribing the inspector to pass you, but you can get into big trouble, and the inspector could be fined $10,000 dollars and loose licence. I have heard...
Thanks for the info
I should have stated my question better.
The visual inspection is no big deal, just bolt the cats back in place and leave the rear O2's there for looks.
I was just curious that when they plug in their scanner for testing, they might see that the CEL is off (rear O2's) that they would fail the vehicle.
Does any one have first hand experience with this?
cats?? what are those??
my truck doesnt have them
sprayedenali: i like catching, but not fishingOriginally Posted by DamnYankee
lol...I wish you would never paint your truck...I bet it bugs them that much more that a primered up truck just soggied his Wheaties. good job buddy
DBTBSS: bring Tyler... we need someone to make fun of
MidnightRider: your right im gay
DamnYankee: my nana failed
DamnYankee: confused...if it can't keep up to begin with, how can it keep up
mitch cobb racing: ya, allen played with it for a while, HUGE difference
no the CEL will not be on if you get a tune to delete them
Name: Mark,
God created turbo lag so nitrous trucks could have a chance.
http://www.ls1truck.com/forums/my-ga...tml#post274877
by the way that looks like a bad ass truck you have post up some pics in the pics section
Name: Mark,
God created turbo lag so nitrous trucks could have a chance.
http://www.ls1truck.com/forums/my-ga...tml#post274877
Posting Permissions
Reply With Quote
