is the map sensor on this vehicle a 3 wire plug? And where is it? I think this vehicle is missing the map sensor but I'm not sure, I see a 2 plug sensor on the firewall, I think thats the purge solenoid.

And is the map sensor part of the chassis harness or the engine harness? Pictures would be great.

 

The map sensor is in that little black box above the fuel filter. 3 wire.