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Hey everyone, Im new to these forums, but have again and again referenced the info here..

Anyway, Im in desperate need of wiring info for my map sensor and air temp sensor.. Ive been trying forever to translate my japanese manual with little success..

I have a wiring specialties conversion harness, so the harness is brand new and plug/play for a maf setup.. The tech there told me to wire the iat red(signal) into pin 36 and the brown wire is a ground (to the ecu ground or chassis).

When i switched the power on, the iat read -32*f when it was more like +65*f So obviously wiring is incorrect.

Any help would be greatly appreciated.

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https://www.sau.com.au/forums/topic/439298-rb25det-series-2-d-jetro-wiring/
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  • 1 month later...

So just an update in case anyone else ever has a similar issue:

IAT signal wire (red) goes to pin 57 (ecr33) You may need to add in a pin as there was not a wire on my harness here. My Mazda IAT sensor kit came with a couple new pins that worked, though it is tedious installing them.

IAT ground wire (brown) goes to pin 50 (ecu ground). Tap into this ecu ground wire, obviously don't cut it.

Map sensor plugs into the side of the ECU.. Confusing for me since the boost control kit also plugs into the same port on other model PFCs.

This is what got me up and running.

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