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Old 05-23-2003, 04:12 PM   #1
Scooby Newbie
Member#: 37275
Join Date: May 2003
Location: estonia
1997 legacy

Default quick help needed with ecu replacement

can I replace my legacy 97 2,0 ecu with other ecu that has different number? or should the number be exactly the same?even if the cars year and engine is the same?both cars are without the immobilaizer.
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Old 09-03-2007, 02:04 PM   #2
Scooby Newbie
Member#: 130047
Join Date: Oct 2006
Chapter/Region: MWSOC
1997 Legacy GT


Hate to resurrect this old of a thread but I've been searching and I've had no luck finding an answer.

Do I need the same number ecu or will a different one work? Will it matter if the computer came out a car with an auto and is going in a manual?

Ex, I think mine is a 5N, could I use a 4N computer?
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Old 09-03-2007, 10:25 PM   #3
Scooby Guru
Member#: 5218
Join Date: Mar 2001
Chapter/Region: MWSOC
Location: SAUL'S Motorsports
96L Most Over-
Developed Beater


In the few that I have swapped around, it hasn't been a problem. I don't know what the differences would be within a model with the same trans but auto/manual would likely have different timing and fueling curves to better suit the shifting of the transmission.

You won't blow anything up....if that's any concern.

Jay Storm
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