Went to aircare today, failed in the Oxides of Nitrogen section.

Has anybody been thru aircare recently with headers? How did you do?

I have until friday to get this fixed.

 

check ur EGR .. a bad EGR will definately cause NOx failure

another way to lower NOx is to run cooler ... so make sure ur fans are on .. and if u wanna goto extremes u can take out ur thermostat but u gotta make sure u goto closed loop (ie not running TOO cool)

and goto GM get a bottle of top end cleens and spray it in ur throttle body to clean ur combustion chambers

 

Umm..wanna help me with that one?
Some beer in it for ya! That offers is open anyone too.

 

go get the god of tuning and air care and engines and everything else in northvan to help u out

im a nobody

no but really, if i had the cable to hook up to ur car id help u out.. but i dont.
did i ever tune ur car !? cuz if i did .. i probably turned off ur EGR .. u definately need that turned back on ... or ask the tuning god if he has

 

I passed with headers, heads, and cam.

Did you try to pass with a fake/gutted cat?

NOx is caused by excessive combustion chamber heat. It can also be high if you deleted your EGR without having a cam with significant overlap.

 

No I didn't try to use the fake cat, I used a "hi-flow" cat that Matt sold me along with the headers. I got a feeling that's what caused it because the exhaust smelt different from what I've smelt before. It's smells like something is burning inside or something I dunno.

P.S Call me stupid, but I have no clue what/where the EGR is.

 

your EGR is on the back of your intake

 

Call Matt...he should have you up and running through air care in no time. I'll warn you though...he's not cheap .

 

Does anyone have a working NON-performance cat they can lend me for a day? I dun wanna bother the Non-cheap "god of tuning and aircare and everything else in North Van" again if I don't have to.