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Old 09-15-2003, 12:13 PM   #1
Scooby Newbie
Member#: 20870
Join Date: Jul 2002
Location: Lansing
2002 WRX
Midnight Black mica

Default ecu and coolant temp

I'm thinking about a cooling system upgrade, i.e., the Evan's System.

This system potentially has a much higher operating temperature than an ordinary system, because it sucks a lot more heat off the engine (and it boils at 375F, greatly reducing vapor problems).

It also runs at very low pressures.

Will this screw up anything my ECU does?

I imagine I'd throw a coolant temp or thermostat code. Maybe there's a work around like the resistor fix for the EGT sensor?

I figure I can work around fan issues, but am concerned about such high temps messing with my tune.
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Old 09-15-2003, 04:33 PM   #2
Citizen Mick
Member#: 27646
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Portland, Oregon
2003 Sleeved 2.5
Oil Dry Sump Goodness


I installed the PWR radiator. Bigger, better and you can install the stock fans to it. I like the idea of this stuff

But this stuff sounds pretty good as well.

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