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Old 01-20-2009, 06:14 PM   #19
Scooby Specialist
Member#: 38829
Join Date: Jun 2003
Chapter/Region: NWIC
Location: Tigard, OR
Not your usual 1997
Legacy GT


Does anyone know whether the ECU uses its metal case as a ground or has some reference voltage associated with it? I know it has several ground lines that feed it but I'm wondering if the case itself acts as a ground...

Reason being that when I did my 5 speed swap, I had to ground one pin on the ECU so it knew it's a manual trans. I believe I grounded to the case. Could that be causing me any issues?

*beats head against wall*

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fastenova is offline   Reply With Quote