MSD MAP Sensor readings

I'll have to check trying to change the sensor, never thought of that. I did check the wiring with a voltmeter today and the ground is showing good and it's getting the 5v source power it needs, but I don't really have a good way to check the signal line aside from unplugging the connector at the MSD box and checking continuity on it. The reading seems steady when I plug a laptop in and watch it while driving around, so I don't think it's a flakey signal, but I'm just trying to rule out whatever I can at this point. I've thought I fixed this problem 3 times now, but it never goes away. It's just really annoying having a car that should really perform when you step on it and having it fall on it's face a fair chunk of the time. Hard to impress people when you give them a ride and can't hammer down, lol.