Car uses a lot of petrol

1988 MAZDA CAPELLA
195,000 MILES • 4 CYL • 2WD • AUTOMATIC
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NKUST
  • MEMBER
  • 1 POST
my car uses a lot of fuel
Feb 10, 2011 at 5:07 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 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.
Apr 11, 2011 at 2:59 AM
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