Question about 1989 Buick LeSabre

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Engine light on and it sputters when car inclines.

The following has been done without fixing the problem. 1) tune up 2) a scan which showed cam shaft sensor problem. 3) had a new sensor , replaced magnet and put in a new timing chain ( $ 500.00).
The result: The light still comes on and the engine is still sputtering.It happens more on inclines ,especially when applying gas pedal.

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  • Jody Lamons
    Jody Lamons Jan 06, 2012

    check fuel pressure


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  • 14 Answers

Sound like the mass air flow sensor is dirty. take it off and clean with mass air flow cleaner and let it dry before putting it back in and try. it should be located in the air intake hose or the throttle body. also could be map sensor.

Posted on Apr 22, 2009

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