CHEVROLET SMOG

My Truck Has 290,000 Miles And It Won't Pass Smog. They Say I Need A New Catalytic Converter? Does That Sound Right To You. I Thought They...

My 94 Cavalier Failed Smog Due The A Emissions Leak And High Something. The Guy Didn't Tell Me What I Need To Fix It And I Need To Know...

In My 1982 Chevy El Camino I Have The Stock 305. I Have A Chance To Put A 1999 Ls Motor In It. Being That The Ls Is A Newer Engine And All...

Having Problem Getting Car Smog Service Engine Light Stays On Had Oil Change Replace The Two Oc Sensor And Drove The Car Over 100 Miles...

1st Test 522 Ppm Hc (limit 220) 5.41 Co% (limit 1.2), Co2% 11.5, O2% 0.1; High Idle Ok At 43ppm Hc, Co% 0.01, Co2% 13.6, O2% 1.4;...

My Truck Failed The Emissions Test And Had High Hydro Carbons What Could Be The Cause Of This. Please Help Me Out I Need To Fix It Myself I...

My Car Failed Smog Now I Put New Plugs New Wires New Cap And Roter It Is Now Back Fireing And Idle Is Rough, It Ran Good B4 I Did All This...

My Truck Failed The Fuel Evaporative Controls Functional Portion Of The Functional Check Smog Test. What Could It Be? And How Much Am I...

So Here's The Problem My Car Is Having Trouble Passing Ca Smog Test. I Have Taken The Car To Two Different Mechanics And They Can't Figure...

My Computer Is Not Developing Codes For Emission Testing Required In Az. Obd Ii Process. Cats Replaced By Gm 21,000 Miles Ago. It Is...