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95 Impreza Mass Air Sensor Circuit Pbm.


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My 95 Impreza has been stalling for about 3 weeks. It usually happens in high outside heat, warmed up, after a short time shut off. When I start the car, everything is fine for between 10 sec and 10 minutes then the engine suddenly loses all power, and the RPM's stutter. It usually takes 3-5 seconds for the engine to die completely and there is a 50-70% chance that the engine will catch in that time and I can continue driving. If it stops, I can restart right away without a problem.

 

After 3 weeks the car finally threw a code: 100. Mass Air Flow Sensor Circuit fault.

 

Is there a history on these things I should know? Any place to start looking?

 

I haven't had time to check the wiring yet, but I thought that is where I'd start, hoping I can find a wear point or corroded connection.

 

Thanks in advance everyone.

 

Dave

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