it barely idles and is burning fuel worse a gas hog v8. I've scanned it with absolutely no luck. Any help would be greatly appreciated thanks
Oct 21, 2011 at 8:48 PM
My 2002 jeep liberty is running extremely rich and both short term fuel trims are showing 99.2 with no codes
2002 JEEP LIBERTY
CBOSWELL
- MEMBER
- 9 POSTS
- FOLLOW
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
Probable causes of an engine running rich are as follows:
1.Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system
1.Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system
Oct 26, 2011 at 10:35 AM
Advertisement
I found out Monday that it's only running on two cylinders. Fuel pressure is 55 pounds at idle. Map kpa is around 80
Oct 26, 2011 at 2:01 PM