SMOG

Will A Lifter Tap Affect Emissions Test?

The Fault Codes Are P0452 Evap Control System Pressure Sensor Low Input P0453 Evap Control System Pressure Sensor High Input Can...

My Car Just Failed The Virginia State Emissions Inspection, With A Code That Indicated A Bad Catalytic Converter. The Repair Place (that...

I Have A 1994 Acura Integra With 180,000 Miles That I Bought Recently. It Has A Gs-r (vtec) Engine From A 1997 Integra In It, As Well As...

Engine Performance Problem 1995 Plymouth Voyager 6 Cyl Front Wheel Drive Automatic 260k Miles 95 Grand Voyager 3.3 Ltr. Failed...

Co2 Resting : 00.80%, Co2 Accelerating : 01.08%, Lambda : 0.98 Above Are The Readings From The Last Mot At The Testing Station. It Has...

Hi I Was Just If Anyone Can Help I Fail Emission 3 Time And Need Help To Figure Why The First Time I Went I Fail It For High Co Level I...

My Van Has Failed An Emissions Test Twice For High Hc At Idle The First Time It Was 11 Over The Max Allowed The Second Time It Was 68 Over...

I Failed The Smog Test Idling At 798rpm. I Passed It At 2500 Rpm.I Changed My Oil Used Oil Additive And Fuel Additive. My Engine Was Hot...

Always Has Trouble With Nox Too High. Have Tried Multiple De-carbonizing Additives In The Fuel. Brand New O2 Sensors, Brand New Complete...