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Old 01-05-2006, 10:08 AM   #1
ScreaminFast
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Join Date: Sep 2002
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2003 White WRX
89 240 / 90 240

Default running a hydra, can i eliminate the maf?

I know the hydra uses speed-density (MAP) for its calculations, and the MAF for IAT, but I lost my maf sensor putting my car back together, and I either need to buy another one, or just put on a custom intake or something.

Does it still need to be in there for air temperature?
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Old 01-05-2006, 10:29 AM   #2
pux888
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The hydra does use the MAF to moniter intake temps so need to keep it.
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Old 01-05-2006, 11:21 AM   #3
TheMadScientist
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Talk to Phil. I thought you could use the GM IAT sensor with the hydra.

TMS
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Old 01-05-2006, 03:02 PM   #4
bboy
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Mines stuck into the wheel well. People do use different IAT sensors in other cars.
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Old 01-06-2006, 09:19 AM   #5
Warp3
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You can replace the IAT with a GM sensor, but apparently there is more than one resistance range of GM IAT sensor out there (see the thread I started in the Impreza subforum on the Hydra forums for more details), so make sure you get the right one.

Link to the aforementioned thread: http://www.hydraems.com/forums/viewtopic.php?t=187

Shane
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Old 01-09-2006, 04:56 PM   #6
ScreaminFast
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Ok that sounds good. Someone PM'd me and said I can use a MAF from a scion xA/xB in the subaru, and especially since the hydra only uses it for IAT, I'll use that temporarily until I replace my intake with a custom one and a GM IAT sensor.

Thanks for the help guys
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