CHEVROLET EMISSION

I Don`t Have Electric Going To My Diverter Valves. It Has An Elec. Rely Part #14101029 [ I Am Sure That Is The Problem] That They Don`t Make...

How To Check If Bad Code P0410

Vent Valve High Circuit Code P0446. Replaced Vent Valve Fixed For About A Month. Now It Is Throwing The Same Code. When You Open The Gas Cap...

I Need A Diagram Of The Vacuum Lines For Emission Control. I Have A 454 In A 1986 Rv, And Live In California. There Was An Excellent...

2nd Of 2 Smog Test: @ 15mph/rpm-1012, %co2/meas-11.9, %o2/meas-0.3, Hc(ppm)/max-133, Gp-321, Meas-285, Co(%)/max-0.89, Gp-2.19...

I Have Developed A Leak On The Evap Tube Where The Orifice Sits. It Has A Small Crack Where The Tube Integrates Into The Mounting Flange...

I Know What Problem Is; The Pressure Sensor On Driver Side Fuel Tank Is Bad. Book Does Not Even Show It, But When I Did Evap Test With...

I Just Found One Of The Hoses That Have Come Off The Canister And I Tried To See Where It Goes To. The Thechnician At Pep Boys Said...

How Do You Pull The Evaporative Coil?

I Am Having Trouble Locating My Canister Purge Solenoid On My 1996 Chevy Beretta. The Emmisions Flow Chart Shows That It Is In The Back Of...