Bench ecms

[Bruce Plecan]

-----Original Message-----
From: Shannen Durphey <Shannen at mcn.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Thursday, August 13, 1998 11:59 PM
Subject: Re: Bench ecms


>Does bench ECM have wire to ALDL TCC pin?

Yes it does,

 Scanner probably
>looks for low voltage on apply pin to determine tcc on.  If
>voltage on that line is low for any reason, TCC must be
>"on".

In this case the scanner forces it low.

Cheers
Bruce
>
>Shannen
>
>Bruce Plecan wrote:
>>
>> -----Original Message-----
>> From: steve ravet <steve at imes.com>
>> Subject: Re: Bench ecms
>>
>> >> BTW, the scanner with the TCC "problem" is the MPSI.
>> >>
>> >> I'm gonna reread the manual (that's scary), and make sure I didn't
>> >> miss something, but just a heads up for others playing along here.
>> >>
>> >> Cheers
>> >> Bruce      The staff is really on edge with all these blinking lights,
>> >>                 they keep looking for snow.........
>> >
>> >Hey!  I noticed a similar thing on my MPSI.  TCC is on while I'm sitting
>> >in the driveway.  Didn't think too much about it, figured it was a side
>> >effect of putting the Caprice engine in the S-10.  Does the TCC lockup
>> >info come from the data stream or from the TCC pin in the ALDL?
>>
>> Looks like TCC pin, since with the scanner plugged in LED glows
>> but not bright like when applied.
>>
>>  My ecm
>> >is 16136965.
>>
>> The gas mileage master emc, does a lean cruise.
>>
>> Cheers
>> Bruce
>> >
>> >--steve
>> >
>> >--
>> >Steve Ravet
>> >International Meta Systems
>> >http://www.imes.com
>> >steve at imes.com
>> >
>