[Diy_efi] TCC control

[Bruce]

I've used the vac switch idea for TCC control on a 700R4, and it was
miserable.   With any sort of cam, the TCC just winds up hunting weither to
engage or not.

I'd try using the 747 for the TCC control, first.

Bruce
    Lil guys have worn out one pair of skies, and are now trying some Flat
Track Steel Shoes for more boating fun.



----- Original Message -----
From: Ne14RoxCJ at aol.com
To: diy_efi at diy-efi.org
Sent: Thursday, July 04, 2002 1:23 PM
Subject: [Diy_efi] TCC control


I plan to use the vaccum switch and pressure switches to control the TCC,
since that is what the '85 model 700R4 is set up for (instead of computer
control). Does the ECM still need any inputs (like 4th gear signal) for
fuel/spark changes, or do I just stow those wires and burn the EPROM as a
manual vehicle? I would think it needs something to advance the timing at
hi-way speeds, but is that just from the VSS? Thanks for your help, Bruce.
I'll go splice that IAC together now. Probably more questions to come. I
have all the papers from the DIY site, but like I said, my projects always
have to be more complicated.

BTW, I've heard bad things about controlling a 700R4 with the '747. Any
thoughts on that. My only basis for using stock set-up (pressure switches)
is the mods to the valve body.

Thanks again,
Beau


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