CHEVROLET SMOG FAIL

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...

Hi Everyone, My Car Had Been Sitting In Storage In My Father's Garage For 13 Years Before He Sold It To Me, And Prior To That Had Been...

Wont Pass Smog Code P0430. I Found A Vac Hose That Was Not Connected To Anything But Dont Know Where It Goes Because Part Of It Is Missing....

Supposing 1 Of 3 Previous Owners Changed The Ecm But Got The Wrong Chip (say Out Of A Junkyard 7.4l) Now Causing Excess Fuel Injection...

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

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...

Failed Emissions Test Limit Reading Result Hc Ppm 68 142 Fail Co% 0.36 0.53 Fail...

Hi, Thank You For Your Responce! My '88 Nova Failed Emissions Co Test. Standard To Pass Is 15.0. And This Car Is At 120 To 140! I'm...

Reasons Why My 1985 Corvette Wont Pass California Smog?