99 Impreza OBS MAF/IAT

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12-30-2002 | 09:40 AM

kurier44

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99 Impreza OBS MAF/IAT

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!

12-30-2002 | 10:22 PM

Kevin M

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Posts: 18,369

From: Reno, NV

Car Info: 1993/2000/2001 GF4 mostly red

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.

01-01-2003 | 02:36 AM

impreza2002

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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???

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