GMECM Digest V1 #162

[Nolan]

>Date: Wed, 23 Jun 1999 20:25:53 -0400
>From: "Peter D. Hipson" <mail at darkstar.mv.com>
>Subject: Re: GMECM Digest V1 #160
>
>That is what a DRAC is... <g> Some GM vehicles use the DRAC to feed just
>the speedometer, and the TCM/ECM is fed from another sender. Other vehicles
>feed the output of the DRAC to the speedometer and the TCM/ECM. You need to
>know which configuration your unit uses. 
>
>Q: why not use RPM (Engine) to simulate the speed? 
>
Hi Peter

Thanks for replying!! My setup has one sensor so it must feed both the ECM and
speedo. So then do I feed it thru the plug into the DRAC? Also how would I
simulate
a signal using RPM?

Thanks

Nolan