TCC lockup was Re: Tuning question for 730 ECM

["Craig Marcho" <not_valid_email@airmail.net>]

What is everyone's opinion on TCC lockup in drag racing? Is it best to avoid
TCC lockup during quarter mile runs?

Craig M.

----- Original Message -----
From: "rr" <RRauscher@nni.com>
To: <gmecm@diy-efi.org>
Sent: Monday, October 16, 2000 3:49 PM
Subject: Re: Tuning question for 730 ECM


>
> Yes, this can easily be done in the ecm, as long as you have the
> required location addresses.
>
> The harness uses the four-gear switch from the transmission. It
> will not allow the tcc lock signal to get to the tranny soleniod
> without the 4th-gear switch being active. (a simple relay).
>
> The 4th gear switch tranny output is used by the ecm.
>
> BobR.
>
> sapearso@collins.rockwell.com wrote:
>
> > Haven't I read somewhere about being able to make the TC lock up only in
> > 4th gear with changes in the ECM rather than using the aftermarket
harness?
> > What is in this harness that does this?
> >
> > Scott
> >
> >
>
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