Greddy Z32 MAFS connector help: Green wire

[Prelude Guy]

Hey guys,

You have come through for me in the past. I need your help again. Don't let me down!:bigok:

I bought the Greddy suction kit that allows you to install an S15 T28 (GT2560R) on a Redtop. It came with the Z32 MAFS plug. I am trying to install it but there are 4 wires on the Greddy harness and only 3 on the SR harness.

I looked at frsport.com website and they had a similar harness for sale. It had slightly different colors, but the same harness. It had wires that match the SR harness. Mine has Black, Red, White, and Green wires. According to the frsport pics, my red wire corresponds to the black/stripe wire on the SR harness.

Anyway, what do I connect the green wire to?

**************EDIT*************

I think I figured it out. It gets grounded on the chassis?

[Prelude Guy]

Any help?

My car starts, then shuts off almost immediately. I am wondering if my MAFS is bad or if I have the wiring done improperly. When I disconnect the mafs plug, the car runs longer.

[burnsauto]

correct. its a ground.

[Prelude Guy]

correct. its a ground.

Do you happen to know if I have the other wires connected correctly?

Thanks for the response.

[cotbu]

S13
B = 12V
C = GND
D = Signal

Z32
B = Signal
C = GND
E = 12V