Test Notes

You should enter this Pinpoint Test only when directed here.

This Pinpoint Test is intended to diagnose the following:
- Mass Air Flow (MAF) Sensor
- Harness Circuits: MAF SIG, MAF RTN (signal return to MAF sensor), Vehicle Power (VPWR), and Power Ground (PWR GND)
- Powertrain Control Module (PCM)


DESCRIPTION
For additional information on the MAF sensor, refer to Description and Operation / EEC-V Software and Hardware / EEC-V Hardware / PCM Related Inputs.