1998 Ford Explorer 6 cyl Four Wheel Drive Automatic 180000 miles
Check engine light is on because bank 1 and 2 are too lean. Testing the Mass Air Flow power source with the key turned in the on position, the voltage out put was 5 volts. The battery tested at 12 volts. The out put should read 10 volts or higher / close to the battery. What relay switch or fuse may affect the volts presented to the mass air flow sensor? I have not checked the wires for proper circuit out put.
Thursday, April 10th, 2008 AT 10:59 AM