Hi guys,

I installed the JDM 3 Bar MAP sensor last night according to the instructions posted on here, so that I can do ECU based boost control in the near future.

Anyway, the sensor's not working properly (just getting a constant 0.8V reading), so I'm hoping that the sensor pin-outs I researched and found on the net are wrong. I have a JDM Evo 8 so had no existing wiring or sensor in the car.

I used:
Pin 1 - ground
Pin 2 - signal
Pin 3 - 5V

Having looked through the USDM service manual, it looks like the wiring should be:
Pin 1 - signal
Pin 2 - ground
Pin 3 - 5V

Can someone please check and confirm this? Not too keen on wiring it up again wrong!

If I do already have it correctly wired, I'll pull the sensor out and run a vacuum test on it.

Cheers

 

sensors should be the same but if this helps, i used this pertaining to an Evo5/6 - Evo8 Ecu swap, should be the same though

Ecu Pins
Green - 5v Power (pin81)
Green/Yellow - Sensor ground (pin92)
yellow/Red - Map Signal(Pin73)

-Adam

 

Thanks Adam - I should've mentioned that the spoolin' up pigtail that I bought for the sensor has 3 black wires! They are numbered 1, 2 and 3 at least.

If you or anyone could tell me the order of those wires on the sensor pigtail I'd be sorted thanks.

 

Got my answer! Should've realised that all I needed to do was look through the Evo X service manual.

So for reference:

Pin 1 - Signal
Pin 2 - Ground
Pin 3 - 5V