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Experience:  I have an Associate degree in Automotive Technology and am currently a technician in Wisconsin.
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Oldsmobile Alero: 1998 Olds Alero will start and only stay

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1998 Olds Alero will start and only stay running if I'm pumping the accelerator
Try unplugging the Mass Air Flow sensor. This will be mounted in the intake tube between the throttle body and the air filter housing. It may turn on the check engine light when you unplug it but if the engine stays running then you need a new mass air flow sensor.
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