EMISSION

My Mazda Protege5 Has Gone From Rough Idle While Stopped To Pretty Much Dying When Stopped. I Want To Clean The Egr Valve And I Know How To...

Truck Will Not Idle On A Cold Start Without Giving It Gas. Once The Engine Warms A Little It Idles Rough And Eventually Smooths As It...

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...

I Found Three Vacuum Fuel Hoses And Replaced Them. I Am Hoping That Would Take Care Of The Problem, But I Don't Know Much About Auto...

I've Had A Trouble Code P0401 Coming Up For Months I Took It To A Well Known Auto Repair Chain, They Changed The Egr, Still Have Code...

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

Won't Smog I Was Told To Drive It 75 Miles At 2,000 Rpms. I Did That, And It Didn't Reset Computer.

Can You Please Help Me Find The Egr Valve On My Vehicle Listed Above?

I Have Been Reading Alot Of These Questions Regarding Cars Not Passing The Smog Test, Due To High Levels In Nox. My Acura Integra Did Not...

My Check Engine Light Is On In My Car, When My Personal Mechanic Scanned It He Inform Me That My Oxygen Sensors And Egr Valve Are Bad. I...