porsche Workshop Repair Guides

Porsche 911 Carrera 2 Targa Workshop Service & Repair Manuals

Coolant Temperature Sensor/Switch (For Computer) > < Diagram Information and Instructions|Page 1874
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Air Flow Meter/Sensor: Description and Operation

PURPOSE

Air flow sensor provides DME control unit with engine load signal.

Air Flow Meter/Air Intake Sensor

OPERATION

The intake air flow is determined from a signal produced by a potentiometer in the air flow meter.  The potentiometer is connected to the measuring
flap.  As air is drawn into the engine, the flap is deflected which causes the wiper contact of the potentiometer to move.  The potentiometer signal
represents the air volume entering the engine. 

 

Coolant Temperature Sensor/Switch (For Computer) > < Diagram Information and Instructions|Page 1874