Help!! MAF troubleshooting

[Blue347stang]

I'm having trouble with my car running lean. I'm thinking it's the MAF from Pro-M. I checked out their website and on there it said to check the voltage on the A-D pins.This is what it should read: Pin A:12v, Pin B:Ground Negative, Pin C:Internal Ground 3.5-4v ,Pin D:Output +. My readings are: A:14 volts, B: .11 volts, C: .11 volts, D: .7-.9 volts. I recently hid my wires through the outside of the fender and moved my battery to the trunk. Now I read that when moving the battery to the trunk you must run your negative to the original position which is on the timing chain cover/Block. Then you must run a smaller gauge wire to the floor of the trunk. I haven't done this, I have my negative bolted down to the chassis in the back of the car. I then have another cable bolted on the same side of the chassis but up in front connecting to the block. Could this be my problem?

 

[Blue347stang]

ttt

 

[jrichker]

Battery in rear:

One 1 gauge or better from battery negative post to engine block.

One 4 gauge or better from battery negative post to chassis ground point near battery. You can use any of the sheetmetal flooring, just be sure to sand it clean & shiny where you bolt the cable.

One 4 gauge or better from the engine block to the chassis ground point where the battery used to live. Best results are when you use the same ground point as the ground cable coming from the battery.

One 1 gauge or better from the battery positive post the the starter solenoid.