ok, i'm sooo bummed, I love my truck, yea she's probably neglected, but she's always been there for me....here's what I got....not bad for 266k miles!!! %CO2 %02 HC (PPM) CO (%) NO(PPM) test rpm mea mea max ave mea max ave mea max ave meas 15MPH 1585 14.5 0.3 121 35 153 0.70 0.11 0.26 1006 332 841 fail 25mph 2440 14.6 0.3 101 24 98 0.90 0.09 0.29 866 274 742 pass they said my hc(ppm) at 153 was too high......what's that mean??? I passed all the other stuff with the exception of Fuel Evaportive Controls Functional, if they are functional, how'd it fail??? i'm sooo confused, and they won't tell you a thing either!! I did a oil change about4 days ago, and changed the air filter...what's sad is I changed the cat. the last time I did smog....not sure it that was 1 or 2 years ago....anyways, any help would be appreciated! Thanks!