View Full Version : 99 Impreza OBS MAF/IAT


kurier44
12-30-2002, 10:40 AM
Would like to know what two of the four wires on the harness plug that attaches to the MAF sensor connect to the IAT.
Have been told, but cannot validate, that two wires (red and yellow) are for heating the MAF sensor.

Thanks!

Kevin M
12-30-2002, 11:22 PM
I don't know which are which, but I do know that the MAF has to be hot to work. Have no idea why though, I'm not that kind of engineer. ;)

impreza2002
01-01-2003, 03:36 AM
YO! MAF based car dont have the IAT sensor, and only those MAP based cars have it! Did you get the mod kit from ebay???