Failed Emission :(, Can anyone help??? Options

[viruz_one]

Just took my car in to get emission. It failed. I asked the guy what could be wrong and he said he had no idea. I mean the car runs fine. I havent driven it for about two weeks and just barely started driving it again. It did shoot out some blue smoke when it was on the dyno. I think the cat is ok since the NOX rating looks fine.

15MPH
%CO2----15.0
%02------0.0
----------------
HC(PPM) MEASURED
102
-----------------
CO(%)
0.47
-----------------
NOX(PPM)
135

25MPH
%CO2----14.2
%02------0.0
----------------
HC(PPM) MEASURED
159 Fail Max Allowed 118
-----------------
CO(%)
1.64 Fail Max Allowed .54
-----------------
NOX(PPM)
709

If anyone knows what could be wrong or where to start that would be much appreciated. Thanks.

This post has been edited by viruz_one: Oct 8, 2009 - 1:17 AM

[Bitter]

do the tuneup and make sure to get the engine good and warmed up. drive down the highway in 4th gear (3rd in the automatic) for a couple miles at 60+mph to get the CAT nice and hot and working 100%. when you go for the testing try to go at a time where you won't be idling for a long period before the test, if you do need to idle for a while hold a fast idle at about 1500 RPM.