Honda Smog

I Went To Jiffy Lube And Had Oil Changed And The Filter And The Air Cleaner. I Took It To Get Emissions And It Still Wont Pass. It Blows...

Honda Recently Failed Emissions. First Test Failed Miserably. I Replaced Upstream O2,pcv,air Filter. Second Test Passed All But Co At Low...

My Honda 1990 Civic Lx 1.5 New Calitic Conv. New Ox Sen. Running Rich Wont Pass Smog Need Help What Do I Do Next ? Whatsthe Prob. ? Please...

What Causes Co% (max.63 Measured 1.57%) To Be Too High In Only The 25 Mph Test? Before This We Had To Replace The Egr Valve And Reset...

My Car Failed This Years Emissions Test With A High Nox Reading. My Car Is A 1989 Honda Civic Hb With A 1.5 Engine, 4spd. Does It Have An...

My Car Faild Smog Because Of High Hc And O2 Why?

Engine Performance Problem 1989 Honda Civic 4 Cyl Two Wheel Drive Manual I've Been Told So Many Things That It Could Be. I Tuned It...

We Took Our Car In To Get Emissions Tested And It Failed The Co Emissions At 7% But Was Fine On The Hc. So We Had Diagnostics Run On It And...

I Have A 86 Honda Dx Wagon 4wd With A 1.5l Carburated Engine. I Replaced The Spark Plugs And Air Filter Prior To The First Test. It Failed...

I Searched All Over The Net For Someone Who Has Had This Problem, And I Have Found Multiple Sources That Talk About Some Of The Same...