Mass air flow sensor

1990 TOYOTA COROLLA
250,000 MILES • 1.6L • 4 CYL • 2WD • MANUAL
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SHELLY164
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  • 1 POST
Does my car have a mass air flow sensor? I have searched everywhere on my car and cannot find it. My car hesitates on start up but is fine at sixty mph. Can someone please help?
May 1, 2018 at 9:56 AM
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JACOBANDNICKOLAS
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Your vehicle does not have a Mass Air Flow Sensor. However, it has an air flow meter. A Bosch vane type airflow meter is mounted in the air induction system near the air cleaner. The airflow meter measures intake air volume, and converts these readings into voltage signals by means of a variable resistor. These voltage signals are then sent to the ECU and used to determine injection duration and proper fuel delivery. When intake air volume is low, the voltage is high; when the intake air volume is high, the voltage signal is approximately zero. Could this be the cause of the problem, yes. However, I would suggest looking for a vacuum leak or in need of a tune up. I attached a picture to help find it.
May 1, 2018 at 6:32 PM