trying to make my own harness for my map sensor to the old boost sensor harness. It's a s5 turbo fc. I'm using the standard apexi sensor which is a denso 3 bar sensor. From pictures of existing harness (I couldnt find a good picture) the pictures below is what I came up with but im not sure if its right. anyone have a harness they can check this against? thanks everyone

 

Get your multimeter out - one wire should be 5v, one should be ground, and one should be the signal going back to the ECU. If you can decipher which is 5v and which is ground, you know the 3rd one .

Dale