failed smog

[FlyingEagle]

Idle and then 2500 RPM or 2500 RPM then idle ??

 

[SouthCaliVR4]

Sorry I do believe it was 2500 1st then idle.

 

[4thStroke]

In 2010 I tested idle first, then at cruise. This year it was cruise first, then at idle.

 

[Brianawd]

Your co2 is low. Put a block off plate between the EGR valve and intake manifold. A egr valve lowers CO2 but raises HC. Your CO2 will go up but HC will go down. You should pass with out a problem. Funny because HC do more damage then CO2 yet the EPA still pushes EGR valves.

 

[JNR]

Actually, EGR is designed to lower NOx and does not activate at idle, so not sure it's going to do anything for him on that part of the test...seems the 'load' test he's fine, it's the idle he needs to fix...

Do they not give you or care about NOx anymore on CA smog? It's been so many years since I've needed a smog, I don't recall all the areas they show, but could swear NOx is one of them, as that is one of the major parts of smog and why they typically put things like SCR's on coal fired plants.

 

[SouthCaliVR4]

they only test nox on the dyno. so we get lucky on that one.

If egr is leaking it can raise hc.

 

[b00st33d]

I think I might have found the problem. I might have a leak on the manifold to turbo gasket when I went to smog. A couple of days ago, I noticed that I was not boosting. Sure enough the gasket that I have separated.
So injector seal is in order as well as the gasket that's blown. Is it an o-ring that needs to be replaced on the base of the biss screw? Any idea what the part number?
Also, do the technician check the EGR functionality? I have been wanting to block egr but i am unsure if they check it or not.

 

[FlyingEagle]

Unless the tech physically uses a screwdriver or vacuum pump to actuate the diaphragm on the EGR, they will have no way of knowing if its working. Maybe they don't care, maybe they do.
Ask the tech afterwards, or another tech at another shop/state ref site if you are worried about that.

BISS screw has an O-ring, yes.
I suggest getting a proper O-ring like JNZtuning.net, MACHV, etc, sells or any other reputable dealer/site has to offer.