Another thing you could check the the PCM plug. Test the wires between the MAF plug and the PCM plug. Make sure you don't have to much resistance, there could be a bad wire. The yellow wire is the sensor signal wire, black/white is ground, and pink is ignition positive voltage.

That yellow wire probably is bad.

I've had 2 cars that had the wire from the ECM to my MAP sensor go bad then my cars then didn't run or ran really rich.

Should be pin 54 on the blue PCM plug.