1995 Chevy Suburban RUNNING RICH

1995 CHEVROLET SUBURBAN
205,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
TIREPROZ
  • MEMBER
  • 2 POSTS
MY SUB (5.7) HAS 205000 MILES WITH A REBUILT ENGINE INSTALLED ABOUT 40000 MILES AGO. IT SMELLS RICH AND FUEL MILEAGE IS 10-12 MPG. THE EGR VALVE WAS GIVING ME A PROBLEM SO A FRIEND UNHOOKED IT. BUT WITH THE PRICE OF GAS NOW I'M WONDERING ITS COSTING ME. WOULD THIS CAUSE MY RICH COND?
IT HAS THESE NEW PARTS.
CAP, ROTOR, WIRES, RAPID FIRE PLUGS, INJECTORS, FUEL TANK, PUMP, FUEL FILTER, K&N AIR FILTER, 3" EXHAUST
May 3, 2008 at 12:55 PM
Avatar
TACTICS112
  • MEMBER
  • 2 POSTS
Yours oxygen sensor(s) could be bad or not reading properly. The Oxygen or O2 sensor reads the amount oxygen in the exhaust and richens or leans the motor if an o2 sensoe is reading bad it may be sending to much fuel into the motor
May 3, 2008 at 1:15 PM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle