BUICK EMISSION

Mechanic Said The Car Cannot Pass Emissions Because I Haven't Been Driving It. He Cannot Find The Emissions Leak. Is This Legitimate?

My Vehicle Runs Fine But It Will Not Pass Emissions Test. How Can I Reduce The Amount Of Unburned Fuel At The Tailpipe? Fuel Pressure Gauge...

Engine Performance Problem 1998 Buick Century 6 Cyl 99,000 Miles The Car Was Reading The Code Of An Egr Valve Error, So I Replaced...

My Car Has Two Codes Not Allowing A Pass On Texas State Inspection. They Are Evaporative And Catalyst Incomplete. What Do I Need To Do To...

Vehicle Will Idle Up To 4000rpm In Park And 1500-2000 In Drive.

It Passed Inspection Fine Here Where I Live But I Gave It To My Sister In Ohio. Emissions Failed. What All Do I Have To Change To Get It...

The Hc (ppm)max 78 Meas 141. No (ppm Max 545 Meas 744. I Have Put On A New Coil, Catalytic Converter, Spark Plug's. We Had To Put A New...

Could This Be The Fix For The Check Engine Soon Light? I Have Sent 2 Images. The First Picture Is The Evap Vent Valve/canister Purge Valve...

My 94 Buick Rigal Failed On Hc Readings Were 1.3725 Limits Are 1.2000 The Co Readings Were 12.0420 Limits Are 15.000 (pass) Nox Are Gitting...

I Have Had This Car For 1 Year. Started Getting Bad Fuel Mileage. Changed Plugs And Wires Didnt Help Just Kept Getting Worse And Started...