Dodge Smog

I Recently Failed The Nox Ppm Portion On The Emissions Test. I Passed The Co%, Hc Ppm And The Co+co2% Test. The Emissions Tech Gave Me A...

My Car Measured At 25mph. 15.2 On Co2 , .2 On O2, 0 On Hc, .02 On Co, Yet Failed Measuring 1211 On Nox. Could This Be A Egr Problem? It Is...

My Car Just Failed The E-check For A High Amount Of Nirton Oxide. What Repairs Do You Suggest First?

93 Dodge Dakota Truck, V8, Failed Smog, After It Warms Up It The Idle Becomes Rough, Has Good Power On Acceleration, Smog Test Had Hi...

I Recently Failed Emissons The Reading Was Nox Ppm Too High. The Tester Suggested That I Have My Egr Cleaned And Or Replaced, However My...

What Does Co% Mean On An Emissions Test?

Also Is It A Fuel Injection Or Carburetor Injections I Live In California. Do You Have Any One In Ceres Ca Or Modesto Ca That Fix Whatever...

Failed Miserably, Almost Twice As High As Passing Grade. I Replaced The Catalytic Converter Two Years Ago And It Barely Passed Then. (the...

What Could Be Causing A 1989 Dakota To Fail Emissions? Also, The Air Condiioner Doesn't Work At All. How Do I Fix It?

Ok. I'm In A Bind Here. I've Got A 1987 Dodge Dakota Work Truck I Just Bought, But It Keeps Failing Emissions Inspection. I Don't Think It...