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df90: Service Code 22: Continuous Test: Exercise MAP Sensor
Steps _Using Key On Engine Off Continuous Monitor mode, observe VOM or STAR LED for indication of a fault while performing the following:
_Connect a vacuum pump to the MAP sensor.
_Slowly apply 84 kPa (25 in.-Hg.) vacuum to the sensor.
_Slowly bleed vacuum off the MAP sensor
_Lightly tap on MAP sensor (simulate road shock).
_Wiggle MAP connector
Result Is fault indicated?
Direction YES

Disconnect and inspect connectors. If connector and terminals are good, replace MAP sensor. Rerun Quick Test.


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