fuel consumption

1995 OPEL OMEGA
2WD • MANUAL
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DKWAKE
  • MEMBER
  • 1 POST
fuel consumption is very high
Jan 18, 2011 at 12:02 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
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.
Mar 20, 2011 at 10:47 PM
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