I searched on EBAY and I found this map sensor for 50 bucks, I was going to give it a try as the seller has good PF on this same item.
I have the motorola map sensor which I gave it a try on an ASFC, it would not work. I think the sensor is too brittle and I may have burned it while soldering. THe box states to use extreme caution, but there is no way around it when applying heat to the pins. I got R/C cars so I am pretty good on swapping bad receiver antennas, and on those you have to be super quick.
The one on EBAY seems pretty solid to me, no soldering involved which is a good thing.
Also, I read the sensor has to be calibrated or something when connecting to the piggy back, for pressure settings people recommend to use a tire pump.
About an older Mazda, do you refer to other vehicles, like 626, 929, RX-7s?
There is a junkyard nearby and I was planning to go on this weekend...
Thanks for all your help.