GMC P CODES (POWERTRAIN) P0400 - P0499

I Have A 2001 Gmc Sonoma 2wd 2.2 Liter And Have The P0420 Code For Catylyst Efficiency Low Bank One. I Have A New Cat And Rear O2 Sensor So...

I Just Bought This Pickup And The Service Engine Soon Light Has Come On And These Codes Are The Ones I Pulled Out. Can Anyone Direct Me...

Evaporative Emission Control System Incorrect Purge Flow. How Can I Check Which Part Needs To Be Replaced, Charcoal Cannister, Purge...

I Have A 2000 Chevrolet S10 Pickup With 120,000 Miles On It It Has A Four Cylinder. The Engime Code That It Has Is P0410 Secondary Air...

What Does It Mean When The Repair Code Is P0440? What Should I Fix? Thanks, Sherry

I Am Getting A Trouble Code P0440 And P0440pd, I Look In The Reference Code Book For The Description But It Just Says Evap Emission...

Hi My Partners Truck Came On This Morning With The "check Engine Light", We Went To Pep Boys, The Guy Did Some Scan Thing And...