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Old 08-05-2010, 11:26 PM   #1
Scooby Specialist
Member#: 1260
Join Date: Apr 2000
Chapter/Region: VIC
Location: Squamish
09 STi, DGM
04 WRX Stage 2, red

Default Oil pressure and temperature senders

I will be fittting electrical oil temp & pressure senders to an 09 STI which will connect through a Fusion Brain controller.

I'm looking for advice on senders, adapters and locations.

Which pressure senders are small enough to fit in the rear oil gallery without needing to be remotely positioned? I've seen the Defi sender and that looks quite small. The Prosport looks too large.

Are there problems with using the remote sensor adapter for pressure?

Are there any problems with not refitting the stock pressure light?

Is there a T adpater to allow the front connector to have both the stock and a new temp sender connected at the same time? I'm thinking that the temp sender will be lifted out of the flow and not read correctly in that scenario.

Right now I'm favouring having a small enough pressure sender to locate in the rear gallery plug and a temp sender in the plug by the alternator.
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Petrie is offline   Reply With Quote
Old 08-07-2010, 08:40 PM   #2
Scooby Guru
Member#: 4414
Join Date: Feb 2001
Location: Dublin, CA
2002 WRX Sedan
Midnight Black


I fit the Prosport pressure sender without issue, just it won't survive there long. Mine was toasted (I assume from the turbo heat) in no-time.

Installing Zeitronix sender when I get around to it, those things are bulletproof, but pricey.

Auberins.com has a small-ish one for cheap, but I decided to go with what I know this time around.
Concillian is offline   Reply With Quote
Old 08-07-2010, 09:35 PM   #3
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
2005 WRX/STi
WRB of course


The front location where the OEM sensor is, is the prefered spot since it is right after the pump and before the oil starts to be distributed to the other galleys. Just set your guage limits to the OEM spec for idle pressure (14psi) and you'll be set. It may go off once in a while when the a/c comes on or whenever the idles dips a bit normal. The OEM idiot light is 2psi BTW. The pan is the ideal spot for temperature as it shows the temperature of the oil that's going into the motor.
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Old 08-07-2010, 11:04 PM   #4
Scooby Specialist
Member#: 1260
Join Date: Apr 2000
Chapter/Region: VIC
Location: Squamish
09 STi, DGM
04 WRX Stage 2, red


Thanks guys.
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