SMOG

I Have A Mercedes Benz 500 Sec That Wont Pass Smog. I Took It To Get Smogged And The Person Told Me It Was Misfiring And To Change The Spark...

Hello I Took My Car To An Emission Test And It Fail Beacuse Of Two Codes Which The First One Is P1320: Manufacturer Controlled Ignition...

Engine Mechanical Problem 1991 Cadillac Seville V8 Wheel Drive Type Unknown Automatic 122700 Miles My Caddy Began Running Funny. I...

I Live In A County Where You Have To Have Emissions To Get A Tag And My Car Won't Pass Emissions Becuase Of Code 420 Which Is "catilist...

Engine Performance Problem 1997 Mercury Sable 6 Cyl Front Wheel Drive 136000 Miles I Have A 97 Mercury Sable Gs That Needs To Pass...

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...

Engine Performance Problem 1992 Mazda Mx3 6 Cyl Front Wheel Drive Manual My Car Did Not Pass Smog. Since Then I Have Replaced The...

Just Bought Car, Had To Have Emission Test, Failed With "#1 Cylinder Mis Firing". In Standing In Front Of The Car, Looking At Engine...

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...