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-   -   need quick answer (https://www.subaru-svx.net/forum/showthread.php?t=42275)

cruisen_15 12-10-2007 09:03 PM

need quick answer
 
is this the a4 pin location? do i just stick a wire in here to a grounded spot like the wire i am showing, it is a ground but it was cut... previous owner..
http://memimage.cardomain.net/member...39_11_full.jpg

http://memimage.cardomain.net/member...39_12_full.jpg

Nomake Wan 12-10-2007 09:28 PM

Quote:

Originally Posted by cruisen_15 (Post 514499)
is this the a4 pin location? do i just stick a wire in here to a grounded spot like the wire i am showing, it is a ground but it was cut... previous owner..
http://memimage.cardomain.net/member...39_11_full.jpg

http://memimage.cardomain.net/member...39_12_full.jpg

Yes, that's where you put the wire. That's A4.

http://img139.imageshack.us/img139/1...dewiressp5.jpg

If you're sure that other thing is a ground, go for it. I just used one of those two blue wires there, since they're both grounds.

cruisen_15 12-10-2007 09:30 PM

gosh i hope your right on this, i dont want to short a TCU :o

Nomake Wan 12-10-2007 09:31 PM

Quote:

Originally Posted by cruisen_15 (Post 514512)
gosh i hope your right on this, i dont want to short a TCU :o

Trust me dude, when I first did this, that's exactly what was going through my mind. :o

cruisen_15 12-10-2007 11:00 PM

connected it all toghether but, ive got good news and bad

GOOD: faster, cleaner, smoother driving... when i mash it shifts at 6500rpm...

BAD: Hesitation seems worse!! no power light, and drove car for 4-5 mins, stopped for about 10 mins with acceserys on and i went to start it and the battery was completly dead!!! the battery and alternator have been checked out good last month...somehow hesitation was bad since i did this mod.....

Nomake Wan 12-11-2007 12:18 AM

Quote:

Originally Posted by cruisen_15 (Post 514542)
connected it all toghether but, ive got good news and bad

GOOD: faster, cleaner, smoother driving... when i mash it shifts at 6500rpm...

BAD: Hesitation seems worse!! no power light, and drove car for 4-5 mins, stopped for about 10 mins with acceserys on and i went to start it and the battery was completly dead!!! the battery and alternator have been checked out good last month...somehow hesitation was bad since i did this mod.....

Are you SURE you know what you're doing with that wire there? :eek: The TCU is completely separate from the ECU, so connecting a ground to A4 should have absolutely no effect whatsoever on your engine. It changes the way the transmission shifts, nothing more.

So it's either that the wire you connected did something important (eek!), or the fact that the transmission is asking more of your engine and your engine can't deliver. I think the second one sounds more plausible. Performance modifications on a vehicle that isn't sound are going to be iffy at best.

Trust me, I know. :rolleyes:


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