Map sensor/fuel regulator

[Stevesr]

Hi guys,these wires go to the MAP sensor but there is a vacuum hose also going to the fuel regulator.D oes the MAP sensor control the fuel pressure or does it just use the manifold vacuum?
Also,this is a 2000 3.4 intake I have on a 1991 3.1lt engine harness. Did the 91' have a MAP sensor?

[SappySE107]

Both engines have a MAP sensor, and the MAP reads vacuum, nothing more. The vacuum line going to the fuel pressure regulator changes the fuel pressure based on vacuum.

[Stevesr]

Thanks,I thought that's how it worked.now I need to find the MAP sensor connector on the engine harness.
this engine has been swapped into a Porsche 914 so I'm a bit over whelmed with some of this.