fuel comsumption

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exodus5547097
Posts: 363
Joined: Mon Jan 08, 2007 6:56 pm

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what is causing my fuel to decrease? what is the troubleshoot for it?I'm losing alot of gas on OEM nissan 240sx 89-94 5-spd, no aftermarket parts on it, just original.

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Bwana
Posts: 6188
Joined: Thu Sep 16, 2004 9:38 am
Car: Denali
Location: Escondido, CA

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Give me a little more info. 89-90 (KA24E engine) or 91-94 (KA24DE engine)? Is it running well? Recent tuneup etc? Mileage on the car? What was your fuel mileage and what is it now? Any new tires recently?

Sorry for all the questions, but that info will help a lot!
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rogoman
Posts: 848
Joined: Fri Feb 17, 2006 5:44 pm
Car: 1991 240SX FB
2012 Altima 2.5 S

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Check the O2 sensor. It has the most direct effect on MPG.
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