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Old 08-12-2008, 01:42 PM   #11 (permalink)
wagonman76
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Join Date: Jun 2008
Location: Northwest Lower Michigan
Posts: 1,006

Red Car - '89 Chevrolet Celebrity CL 4 door
Team Chevy
90 day: 36.47 mpg (US)

Winter Wagon - '89 Pontiac 6000 LE Wagon
90 day: 28.26 mpg (US)
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Thanked 17 Times in 16 Posts
On vehicles that are having trouble with the VSS signal, does the VSS go through the ECM or VSS buffer? And if so, is the signal being tapped after that?

I know at least on mine, the signal from the VSS itself isnt very friendly. Depending on the vehicle, it goes either through the ECM or VSS buffer to clean up the signal, and then feeds the pulses per mile to the gauge cluster and cruise control module. I tapped into that and didnt have any problems once I got my wiring right.

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