With the key ON , and the engine OFF , verify that there is at least 10.5 volts ( I got 11.65)between the VPWR (red) and GND (black/white) terminals of the MAF sensor connector. If voltage is not within specification, check power and ground circuits and repair as necessary.
With the key ON , and the engine ON , verify that there is at least 4.5 volts between the SIG (light blue/red) and GND terminals of the MAF sensor connector.(I got 0.68) If voltage is not within specification, check power and ground circuits and repair as necessary.
With the key ON , and the engine ON , check voltage between GND and SIG RTN (tan/light blue) terminals. Voltage should be approximately 0.34-1.96 volts. (I got .009)If voltage is not within specification, the sensor may be faulty. This was with the maf unplugged and engine running. Engine runs slightly better with MAF plugged back in. What yall thank ? I appreciate yalls help very much.
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