Test Point 6 - Air Flow Sensor

TEST POINT 6

Air Flow Sensor




1. Push back protective sleeve of the airflow sensor connector. The connector remains attached. Connect voltmeter to terminal 9 and to terminal 6 on the rear of the connector.
Specification: more than 8 V.
2. Remove air cleaner. Connect voltmeter between term 7 and ground
Specification: approx. 150 to 250 mV.
3. Push sensor plate to full throttle position with a not-to-hard, smooth item inserted through the filter intake opening.
Voltage rises above 8 V with sensor plate fully open (switch over test range).
The sensor plate must not stick and return to off position on its own when released.
4. Check temperature sensor I (intake air temperature). Turn off ignition and pull off plug on air flow sensor. Connect ohmmeter between term. 6 and 22 on air flow sensor (both outer flat male plugs).
Specification at 15 to 30° C: 1.45 - 3.3 k-ohms

Note: Interruption on temperature sensor causes richer mixture. Short on temperature sensor causes leaner mixture.