SMOG FAIL

New Exhaust Pipes, New Catalytic Converters(2) Went To Inspection For Emissions Test. Failed Hydrocarbons And Canon Monoxides. Mechanic...

1990 Buick Regal Will Not Pass Smog. The Guy At The Smog Shop Is Saying That Everything Is Ok But The Egr Valve Is Not Working. Diagnose...

Engine Performance Problem 1995 Chevy Camaro V8 Two Wheel Drive Manual I Took My Car To Get Smogged 2 Times The First Time It Failed...

I Have A 90 Gmc Jimmy. It Has The 5.7 With Tbi. The Motor Was Replaced And Actually Has About 90,000 Miles On It. I Recently Went In For...

Have Check Engine Light On. Would Not Pass Smog. Got Code For A Canister Purge Control Valve. Bought One And Change It Out. The Problem Is...

I Have Codes P0108, P0123, P0132, The Car Runs Great But Won't Pass Emission

My 1986 Vw Westfalia Vanagon Camper Failed Ca Smog. It Passed 1 Year Ago(only 3300 Miles Since) And I Have Not Noticed Any Different...

Engine Mechanical Problem 1996 Dodge Neon 4 Cyl Front Wheel Drive Manual I Keep Failing Smog Test Its Running To Rich But The Check...

1999 Dodge Durango, The Computer Will Not Communicate With Any Shop Scanners, The Vehicle Failed Smog Because The Tech Could Not Retrieve...

It Failed Due To "coolant Temperature Below Thermostat Rating" What Do I Do Next?