SMOG FAIL

Failed The 15 Mph Hc(ppm): Rpms=1630 Co2%=14.10 O2%=0.55 Hc(ppm)=156 Avg. Is 31 Max. Is 142 After Failing I Purchased New Plugs...

Emissions Tested And Recorded High And Failed When Engine Ran For 5 Mins At 15 Miles Per Hour, But When Tested For 5 Mins At 25 Mph...

My Car Failed Smog There Was A Code P 0171 That Came Up I Have Changed The Spark Plugs The Wires The Valve Cover Gasket And O2 Sensor But...

According To The Mechanic After Failing Smog Check: "removed Catalytic Converter Heat Shield And Found Crack Running Down The Exhaust...

My 96 Corolla Failed For 15 Mph Test; Hc Max Is 64 And Measure Is 69. Other Readings Are Fine. 15 Mph Hc (max-64, Ave-9, Meas-69) Co...

My Truck Failed The Emissions Test And Had High Hydro Carbons What Could Be The Cause Of This. Please Help Me Out I Need To Fix It Myself I...

Other Category Problem 1999 Dodge Caravan Engine Size Unknown Wheel Drive Type Unknown Automatic 180000 Miles My Van Failed Its Smog...

My Truck Failed Smog; Co Too High. Slightly Over At 15mph And Almost Over At 25mph. The Cat. Is Original. The Truck Seems To Run Ok But The...

I Have A 2001 Hyundai Accent With 83,000 Miles. Just Took It In For Smog And It Didn't Pass. The Nox Was In The High 600's, Around 670-680...

My Car Failed Smog Now I Put New Plugs New Wires New Cap And Roter It Is Now Back Fireing And Idle Is Rough, It Ran Good B4 I Did All This...