I would greatly appreciate advice on connecting a 5 wire MAF/IAT 2009 Subaru sensor. 2 of the outputs appear to be 0v but for the wires to be separate there must be a difference. I am guessing that one needs to be connected to battery ground to complete the hot wire heating circuit and the other to sensor ground for the IAT & MAF voltage signals.
Any ideas on how to work out which is which would be good.
Thanks in advance.