1996 GMC Yukon System Too Rich

1996 GMC YUKON
Avatar
CURTIS FOWLER
  • MEMBER
  • 1 POST
Engine Performance problem
1996 GMC Yukon V8 Four Wheel Drive Automatic

I've changed my plugs, wires, Distibuter cap and rotor and air filter. Codes read(too rich) PO172, PO175, and PO305 misfire. What steps should i take to fix these problems?
Mar 12, 2010 at 5:12 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement