Speedo PPM
keith12
04-21-2006, 10:22 PM
I have an 89 Astro that I'm installing a Dakota Digital signal generator on to the speedo drive on the transmission.
Trans went out, so I replaced it with a new one which had a cable speedo instead of a VSS.
Dakota digital makes a generator and a programmable signal interface for the speedo. I need to know how many PPM the 89 Astro requires to drive the speedo.
Anybody have any idea?
Thanks
Trans went out, so I replaced it with a new one which had a cable speedo instead of a VSS.
Dakota digital makes a generator and a programmable signal interface for the speedo. I need to know how many PPM the 89 Astro requires to drive the speedo.
Anybody have any idea?
Thanks
Blue Bowtie
04-22-2006, 03:18 PM
4,000 pulses per mile. That also depends upon whether there was a VSS buffer module on your '89 (yellow plastic box on the ECM).
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