Hey Michael,
I wonder if we're missing a trick with the TCU mods.
Ryan's post on the USMB seems to suggest that on his TCU, the stock rom can be disabled by a resistor cut rather than removing it completely - like on our ECU.
Quote:
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Originally Posted by presslab
The TCU was modified by soldering a socket onto the circuit board. I was going to use a different Legacy TCU but it had no holes to solder the socket! I'm not sure what year that TCU was. After the socket is in place, there is a 0-ohm resistor on the bottom of the board that needs to be moved to enable the new socket. The ROM chip I am using is a SST27SF512; this EEPROM is easily reprogrammed without a UV eraser.
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http://www.ultimatesubaru.org/forum/...ad.php?t=93670
Any ideas?
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Subaru ECU and TCU Website
1992 Alcyone SVX Version L
1992 Alcyone SVX Version L
1994 Alcyone SVX S40-II
2004 Subaru Legacy 2.5 SE Sports Tourer
1996 Subaru Legacy 2.2 GX Wagon
1988 Subaru Justy J12 SL-II