Autotronic replacement board

[Legacy777]

I'm assuming the "Subaru WRX 1994 to 1996 replacement board." is OBD2??

http://www.autronic.com/page_files/mits ... subaru.htm

[scuzzy]

I'm assuming the "Subaru WRX 1994 to 1996 replacement board." is OBD2??

http://www.autronic.com/page_files/mits ... subaru.htm

I don't think so.

[vrg3]

OBD-1.

94-96 WRXes ECUs are actually very similar to those in 93-94 non-turbo North American Legacies. Other first-gen JECS ECUs are also similar.

[BAC5.2]

Yep. The JDM WRX went OBD2 in 1997. A Friend has an impreza with a 94 WRX swap (controlled by an Apex PowerFC). It ran (an 11.8 I might add) properly, and was using the turbo that is in my car now .

On to something Josh?

[vrg3]

I think you'd actually want to use a 97-98 board, though. I think they have the same basic pinouts as our stock ECUs, unlike 94-96 WRXes which had 4-channel ignitions.

[Legacy777]

Would any of those boards work with the turbo legacy ECU?

Or would I use a 94 n/a ECU with that board and then tune?

Vikash, so you think the 97-98 board would be better....would there be issues since they went to OBD2 in 97?

On to something Josh?

Not sure...there's a tuner in town that sells autotronic I believe. No idea of the cost or if this stuff would work....I'd more or less like to know the if it'd work.

[vrg3]

Realize that those boards aren't meant to work with stock ECUs -- they're meant to replace stock ECUs. They're full standalone ECUs that just fit inside the stock ECU case.

I don't think they'd fit inside a Hitachi ECU case, but they should fit inside any of the JECS ECU cases, I would imagine. Maybe with a little effort.

I don't think they actually went to OBD-II in 97. I think it was in 99. I might be wrong though -- Phil, where did you get that info?

[Legacy777]

Gotcha....I thought they were add-on boards.

[BAC5.2]

It may have been 99. I seem to remember hearing someone say it was in 97. But heresay isn't always right.

I know at least 94 was OBD1. Brent's yellow car has a 94 ECU in it.