SMOG

My 1986 F150 Failed Emissions The Co Test Results Are Low 1.27 High Is 1.98 Any Suggestions?

Hi. I've Been Reading Up On This Site Ever Since I Failed The Biannual Smog Check Mandated By Ca's Dmv. I've Done Several Things Since- A...

Hi, I Have A Vauxhall Astra And I Have A Query On Its Recent Failed Mot. The Mot Failed On (amongst A Couple Of Other Bits): * Exhaust...

Engine Performance Problem 1995 Jeep Cherokee 6 Cyl Four Wheel Drive 195000 Miles My Jeep Failed Nox Level Test. How Can I Fix This My...

Will It Be Able To Pass Smog. Is It Possible To Change A 4 Cylender Into A 6 Cylender And Have It Pass Smog. Will I Be Able To Register It...

Suspension Component Mounting Prescribed Area Is Corroded But Not Considered Excessive (5.3.6 (a) (i)) Advisory Integral Body Structure...

I Have A 1998 Toyota Altezza Rs200 (same As Lexus Is200 But Better Engine). The Car Failed The Exhaust Emissions Text As Follows: Low...

Chevy, El Camino, 1982,120,000, V8. What Are All Of The Smog Pieces That Are Needed

I Will Like To See A Pic Of The Part Po 401 I Wen To Get Free Check Up On Car Before Smog It Comes Out As Mil Is Commanded On Second Is Po...

Cannot Pass California Smog Test. Have Error Codes 0171, 0121and 0420. In That Order. Help!