Do you have a check engine light?
Could be running too rich due to the following below
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.
Friday, March 25th, 2011 AT 1:04 PM