SMOG

Hi Guys, So My 2003 Hyundai Tiburon Was Taken In For Emissions Last Monday And It Failed. The Readings On The Sheet Came Up As High Hc...

My 1992 Bronco Just Failed The California Smog Test. I Had It Tested At A "test Only Station" And They Would Not Give Me Any Advice What...

What Would Cause My Truck To Measure 133 Hc (ppm) And 1033 No (ppm) And Fail Emissions

I Have A 95 Pontiac Grand Am. The Mechanic Has Replaced The Egr Valve. And Also Put New Catalytic Converter On. I Don't Have The Smog...

Here Is My Story: I Have This Rv. It Passed Smog When I First Bought It. Two Years Later I Had To Smog Again And They Found A Low Idle Miss...

I First Took My Truck To Inspection It Faild For Idle. Primary Emissions Test Performd: Tsi-fail Gas Hc Ppm Reading 350 Standard 220 Co%5....

Put Premium Fuel In The Car And Drive It For Half An Hour To An Hour Then Take It To Get Tested, Do Not Shut The Car Off What So Ever. My...

I Have A 1995 Geo Prizm That Failed The Nox Portion Of Texas Emissions By 219ppm. I Was Told By A Mechanic It Has No Egr Valve Which Would...

Ive Done A Major Tune Up On My Bmw Changed All Sparkplugs, Ignition Coils, Oxygen Sensors, Mass Air Flow Meter, Radiator And Oil After...

Hi There, The Engine Light Was Not On, But I Pulled A Code And It Was Po404. What Should I Try Next? Thank You Robert