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1997 Mazda 323 FUEL CONSUMPTION

Tiny
CALAMARES125
  • MEMBER
  • 1997 MAZDA 323
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 125,000 MILES
MY CAR CONSUMES 1LITER PER 5KILOMETERS IN CITY DRIVING WHAT SHOULD I CHECK TO MAKE IT ECONOMICAL?AIR AND FUEL FILTER IS NEW. MY FRIEND TOLD ME TO CHECK THE KNOCK SENSOR. IS THERE REALLY A SUCH THING?
Friday, October 22nd, 2010 AT 10:05 AM

1 Reply

Tiny
RASMATAZ
  • 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 or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
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Friday, October 22nd, 2010 AT 4:11 PM

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