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1998 Nissan Altima Question: car consuming so much gas,whats the problem?

 

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nan0672, 2.4L 4 Cylinder, Chicago, IL, January 10, 2011, 15:30
 Rookie

the sparkplugs and ignition cord as well as the fuel filter were replaced but still the engine consumes more gasoline.

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  • Answer #1

    ZeeTech January 10, 2011, 15:46
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     Master

    Could be a stuck open thermostat, faulty coolant temperature sensor - these problems won't let the ECM to switch to closed loop mode, bad O2 sensor, wrong spark plugs, intake leak, bad fuel injectors, engine mechanical fault - low compression, etc....
    I'd take the car to a good repair shop and let them to check it since so many different thing could cause this condition.

    Zee

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