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Home >> Ford >> 1990 >> Bronco II RWD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Test Dc - Mass Airflow (MAF) Sensor >> Test Dc: Step 2
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Test Dc: Step 2

2) Check MAF Sensor Ground  With KOEO and MAF sensor disconnected, set DVOM on 20-volt scale. Measure voltage between VPWR circuit and PWR GND circuit at the MAF sensor connector. If voltage is greater than 10.5 volts, go to next step. If voltage is less than 10.5 volts repair open PWR GND circuit, reconnect MAF and rerun QUICK TEST.

NOTE: There is a break in the step numbering sequence at this point, skipping from step 2) to step 10). Break is due to previous chart references to these testing procedures. No test procedures have been omitted.