Question about 1996 Subaru Legacy

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Engine stalls while driving and sometimes while idling.

Does not run rough prior to stalling, but just acts as if I turned the key to off, then starts right back up again. The ck.engine light came and Autozone code # P0100 and PO115. ..Also, If A/C is not running it does not stall...at least not yet.

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  • garynmichell Jul 23, 2009

    Also P0100...Mass Air Flow Sensor....Do both of these problems cause symptoms as described above? Do I need to replace the Engine Coolant Temperature Circuit sensor and the MAF sensor?

  • garynmichell Jul 23, 2009

    Sometimes when when trying to restart the car the A/T oil temp light flashes and then turns off. It never comes on while driving though.

  • yadayada
    yadayada May 11, 2010

    DTC P0115 Engine Coolant Temperature Circuit

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The stalling problem could be caused by a faulty mass airflow sensor. That is the PO100 code. The other code is for the engine coolant temperature sensor. Go to the autozone website at autozone .com and register your vehicle. It's free and you will have access to an online repair manual. The procedures for testing the MAF sensor is outlined there. Hope this helps and you find a resolution to your problem. Best wishes.

Posted on Jul 23, 2009

  • Bruce Canfield
    Bruce Canfield Jul 23, 2009

    The stalling symptom seems more likely to be caused by a faulty MAF sensor. I would replace it first and have the fault codes scanned again to see if the engine coolant circuit fault code reoccurs, then make a decision on how you want to proceed. Are you having any cooling issues with the vehicle?

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You need to replace the mass airflow sensor. i had this just happen to me. you wil be better off getting one at a junkyard rather than buying it from like autozone or napa.

Posted on Aug 05, 2009

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