3800 series II swap, please read :)

[TK]

Sorry, not ABS.
-----Original Message-----
From: Shannen Durphey <shannen at grolen.com>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: Saturday, July 10, 1999 6:40 PM
Subject: Re: 3800 series II swap, please read :)


>TK wrote:
>>>Could there be a DRAC type unit involved where you have to resolder
jumpied
>>>dividiers?.
>>>bruce
>>
>> First what does DRAC stand for
>Digital Ratio Adapter Controller ("Controller" might be something
>else).
>
>>and second, no. VSS to the PCM. 2k and 4k
>> output to speedo, TFE, ABS
>
>ECM output to ABS? Are you sure?  FWD brake systems are diagonally
>split (LF + RR, RF + LR). ABS usually uses two inputs for front wheels
>and ride control.
>
>> >>>From that I can tell, the speedo VSS output is just buffered VSS
signal.
>> I
>> >>can move the divisor and road speed constant all over hell and the ECM
>> >>changes but not the VSS output to the speedo.
>> >>
>
>Strange... You can change the speed read by the scantool, but the
>speedo stays the same?  Can you get a correct speed reading out of the
>scanner?
>Terry
>
>> >>>If the hookup is VSS -> ECM -> speedo, and the raw VSS is much higher
>> >>>than 4000 ppm, then it may be possible to reprogram a divisor which
will
>> >>>affect the speedo.
>
>Here's where a DRAC could help.
>New circuit might be VSS -> DRAC -> Speedo
>                              \
>                               -->ECM
>Shannen
>
>