Thanks for the documentation Fuse...a big help.

Here are the results:
the engine surges at idle so the voltage was not consistent, but it mostly stayed between 1.16 and 1.38. Occasionally it would jump to 1.40, but only a few times...voltage seemed to be affected by the fans coming on and off too. So I think we can safely assume that the MAP Sensor is working, right?
I just noticed on the Autozone web site that sensor is $68... I see a savings already!

step two?

Thank you--