Operation CHARM: Car repair manuals for everyone.

Air Flow Sensor Test

AIR FLOW SENSOR TEST

1. Check the mass air flow sensor for damage and cracks.
2. Connect the SSTs (NGS tester) to the data link connector-2.




3. Select the "PID/DATA MONITOR AND RECORD" function and press TRIGGER.
4. Select "MAF V" on the NGS tester display. The NGS tester measures and shows the voltage.




Voltage Specification

5. If not as specified, inspect the harness and connector between the mass air flow sensor and the PCM terminal.
6. It there is correct the terminal voltage and harness continuity, replace the mass airflow sensor.

NOTE: The scan tool shows the mass airflow rate and load value.




Data Specification