CHEVROLET SMOG FAIL

Greetings. My Vehicle's Registration Was Up For Renewal And Besides Paying The Annual Fee, This Year Required A Smog Check (i Am A Ca...

Engine Mechanical Problem 1995 Chevy Camaro 6 Cyl Manual I Own A 1995 Chevy Camaro 3.4 V6 Engine. I Need To Know If My Car Would Pass...

I Have A 97 Chevy Malibu 6 Cyc That Failed The Emission Test Because Of Intake Air Temperature High. I Change The Air Temp Sensor, Filter...

Greetings. I Recently Had A Vehicle Smog Checked In California And The Vehicle Not Only Failed, But Was Classified As A "gross Polluter."...

Engine Performance Problem 1987 Chevy Camaro V8 Two Wheel Drive Automatic 136k Miles I Resentlybrought My Car To A State That Requires...

:roll: Very Confused.I Took My Chevy Van 1996, V8.120,000 Miles To Get Inspection/emissions It Failed, The Guy Said I Need The Following....

My 1995 Z28 Has Recent Rebuilt Heads, New Plugs And Ignition Wires, A Seven Year Old Replacement Cat Converter, Runs Very Good With No Check...

Hi There! I Just Failed My Smog Inspection- They Said That The Nox Level Is Just A Little Too High. What Might Cause This And How Can I...

This Question Is Regarding A 1999 Chevrolet S10 Blazer, 4.3l V6. My Trouble Started A Few Months Ago With A Check Engine Light. I Scanned...

92 Chev Suburban 122000 Miles Failed Nox Portion Of Ca Smog Replaced Egr Valve Got Worse Results On Retest Could O2 Senser Be The Culpret