I AM GETTING TERRIBLE GAS MILEAGE

1994 Oldsmobile Cutlass

Tiny

danielraffensparger

December, 7, 2011 AT 9:00 PM

What is causing the sudden heavy fuel consumption on 1994 oldsmobile cutlass supreme

1 Answer

Tiny

rasmataz

December, 7, 2011 AT 9:05 PM

Could be needing a major tune-up/running too rich

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

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