SMOG FAIL

Car Won't Pass Emission Test What Is Passable No (ppm) M2: 25 Mph Mine Measured 44 I Have A 93 Saturn Sl2 I Am In California

I Recently Took My 1994 740il For Smog Check And Failed The Test As Follows: It Shows Good Performance And Passed At 25 Mph But Failed At 15...

Why Is My Car Failing At 15 Mph But Not At 25 Mph?

Idle Is Rough And At 2500 Rpm Engine Has 900 Ppm Hc And You Can Hear And Feel The Miss. New Pluges Instaled.

The Audio 100 V6 Had 203 K But Two Years Ago I Had Both Caytalitc Converters Replaced And The Nox Levels Where Both Around 49 Way Below The...

Engine Performance Problem 1989 Chrysler New Yorker 6 Cyl Front Wheel Drive Automatic 150k Miles Hi Joe Don't Know If This Is...

Had A Battery Problem, Had It Out For A Week Or Two, And The Smog Test Failed Because The Computer Lost All The Info. Test Center Gave Me...

1996 Infiniti I 30 Continues To Fail Mil/check Engine Light Test Due To Failure To Complete All Obd Self Tests. Specifically Failed O2...

Took Car In For Smog Check. Drove Away And Within Two Blocks All Kinds Of Lights Were Blinking And Bells Were Sounding. Called My Local...

My Truck Has Passed Smog For 2 Years In A Row, Now It Failed, Smog Test Showed Using Too Much Gas. Can You Help