Chevrolet Engine Rich

Truck Misfires Then When Shut Off Sputters Then Backfires.

What's The Cause Of This Code. Cleared Code Several Times, But Comes Back On.

Have A 09 Hhr 2.2 Lt. Showing A Code That Read That Bank #1 Is Running Rich. Changed The Egr Seleniod And Replaced The Gas Cap. Could It Be...

Check Engine Light Comes On At Times Seems To Run Okay. Scanner Says Misfire Number Two Cylinder.

I Have A 2005 Chevrolet Express 3500 With The 6.0 Engine. Bank 2 Runs Extremely Rich, If U Rev It Up The Fuel Trims Drop Down To Normal...

Computer Code Po 117, And What Couses To Run Rich ?

Engine Had A 171 To Lean Code Used Fuel Inj. Cleaner Now Has A 172 Rich Code Should I Try Fuel Inj. Clean Or Whatelse?

Engine Performance Problem 2003 Chevy Avalanche V8 Two Wheel Drive Automatic Avalanche With 5.3 Liter Engine With Codes P0300, P0172...

Hi There My Cavalier, Is Atarting To Get Very Hard On Gass. I Have Put New Plugs In It, And It Has Seamed To Help Alittle, But The Tail Pipe...

Astro 02 Running Rich Random Misfire