EMISSION

Hi Guys, My Dependable 1992 Integra(gs, Automatic) Failed Ca Smog Test This Time: A) It Failed In Nox Column For 25 Mph At A Test-only...

My Car A Honda Accord Sedan 2004 3.0 V6 Engine Is Showing Malfunction Indicator Lamp, Which From The Car Manual Indicates That The Engine...

My Taurus Has The 3.8 V-6 And Has Always Passed The Required Smog Test's Every 2 Years Up Until Now. I Guess The State Added A Fuel...

Hi: Where The Vacuum Switching Valve At The Emission System Is Located, Yesterday I Found At Diagnostic A Different Codes Po300, P0301...

I Got A 1997 Chevy Lumina, 120,400 Miles On It, She Still Runs, But My Question Is This, There's A Hose-like Pipe From The Bottom Of The...

Maybe Someone Can Help Me, I Have A 98 Ranger With The 2.5 Litre Engine. My Check Engine Light Is On Due To A High Input Flow Detected...

Just Bought It Used And Had A 90,000 Mile Service Done That Previous Owner Did Not Do. Codes Po441 Po442 Po446 Codes Came Up My Son Turned...

My Truck Was Purchased With The Emission Vacuum Hoses Disconnected And Plugged. The Diagram On The Air Cleaner Is Damaged. I Shows Hks....

I Use My Car For Delivery's So I Drive All Day And I Live In My Car. So Since It's Hot I Have Left It Running With The A/c On Low...

2003 Ford F150 4.6l V8 W Engine With Reoccurring P0171 And P0174 Codes, With Engine Idling Rough At Normal Temp And Dying When Idling At...