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#1
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TCU shift maps
OK. Here's something for you to speculate about.
On a UK/Euro/Aussie SVX, if you ground pin a4 of the TCU, it enables "Economy Mode", a different shift map designed for those of us who have to pay upwards of $5 a gallon. On a JDM SVX, if you ground pin a4, it enables "Power Mode", we all know how much fun that can be Pin a4 is not connected on a USA SVX, but what would happen if it were? Would it activate "Power Mode", is there a secret "Economy Mode" lurking in your TCU that Subaru never implemented? Would it just do nothing? What do you think?
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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 |
#2
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Wait I thought we were talking about Maps?
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1989 Subaru XT6 130k 1992 Subaru SVX 120k 1993 Ford Probe 30mpg 213k 1989 Subaru XT6 150k All good and running |
#3
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I was thinking along the lines that US owners might be able to make a power mode switch by grounding pin a4 rather than messing with the TPS signal. It would certainly be worth a try to ground that pin and see if the shift map changes.
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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 |
#4
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I know my TCU is ****ed and it always goes into power mode wether I want it to or not! .................................................. ............................ No I dont want help unless someone has a good tcu they want to give me.
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1989 Subaru XT6 130k 1992 Subaru SVX 120k 1993 Ford Probe 30mpg 213k 1989 Subaru XT6 150k All good and running |
#5
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Mmmmmmmmike621 has a few for sale.......
This seems kinda intresteing...
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R.I.P Cool Signature. You're gone but not forgotten. I mean, sure, I kindof don't remember some of the finer details..but I remember you were funny, and at one point you said spaghetti in Dutch....but definantly not forgotten |
#6
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Considering the Euro and JDM are more alike than either of the two and the USDMs, and considering the E and J specs are different in this case, I would think if we were to ground pin a4 nothing would happen, especially since you say it is not connected out of the box.
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"That which can be asserted without evidence can be dismissed without evidence." '92 Dark Teal SVX LS-L, >146,000m 3 pedals, 5 speeds., restoration underway. 2012 Honda Insight, slow but cute. |
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