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What could cause sudden low mileage on a car that seems to be running fine? 700

posted by  mortoni on  Sat Feb 22 04:13 CST 2003
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last visit: Fri Jan 30 03:51 CST 2009
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It could well be the engine temp. sensor. It's resistance changes inversely to the change in engine block temperature. When cold the ECU senses a particular resistance value and lengthens the fuel pulse time of the injectors which enrichens the mixture. Check for a broken or detached wire lead on this temp. sensor. The temp. sensor could also be defective.






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New What could cause sudden low mileage on a car that seems to be running fine? [700]
posted by  Thaddeus subscriber  on Fri Feb 21 15:11 CST 2003 >


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