Failed Emissions

[bulldog]

Check engine lights are a immediate fail right?

I even tried getting it cleared before I went and they caught me still on that code

[Ezzzzy1]

FUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUCK!


Yeah, so beast failed again and even worse. Went from failing 2150 or whatever to 2300 something. The limit of NOx is 2000

What I did:

Used "guaranteed to pass" (I call bullshit )
Burned a whole tank of gas with that in
Literally pulled up to the gas station on an empty tank and filled halfway up with 91
Went and had the check engine lights reset
Drove from Castle Rock to Monument and back then pulled straight into the emissions place. I didnt have to wait, was the first car there.

WTF?

Anyone get the hookup on GM parts? I think I need to just replace the cats

Open to other options, might even try the ethanol method.

[jcj81]

I can get you GM parts prices in the morning.

[Ezzzzy1]

I can get you GM parts prices in the morning.

I would appreciate that!

Its just looking like the cats but im not that well versed in GM...

Maybe O2 sensors too?

[koop]

Before you drop bucks on cats, try seafoaming it. My truck failed and Seafoam made it pass with flying colors.

http://ls1tech.com/forums/general-ma...-your-car.html