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G4+ PnP St185 4 bar MAP sensor wiring


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Hi All,

I hope someone can clarify something for me. I have a full kit ready to be built in my 91 St185, but have some confusion about connecting the Link 4 Bar map sensor.

I think I should swap it with the factory one but... the factory has 2 sensor outputs and a ground (Brown) input, 1 sensor wire goes to ECU PIM pin & Boost Gauge in dash (Red-White), the other to ECU VC pin & AFM and Throttle sensor (Pink-Blue).

The explanations for VC and PIM are pretty much the same: 

- VC: Turbo charging pressure sensor signal

- PIM: Signal from the turbo sensor, also drives the boost gauge

So if I can replace directly, is the VC the +5V? Or do I disconnect the factory MAP and need the expansion loom to make this work?

 

Hop someone can clear my confusion :s

 

With kind regards,

Mystefyer

MAP-Wiring.png

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