It does need the PCM tap, as it monitors fuel consumption. As you put your foot to the floor, you watch can see the mpg drop to 7!! Similarly on overrun, the mpg goes to 99. The VSS alone will not give this info, it needs the PCM also.
5 Dr, 2.5 V6 Ghia X, 1999 Modifications:- Inventor of the inductive Secondary monitor Chrome grill JR cone air filter Black Diamond cross-drilled & grooved discs with Predator pads, ST200 throttle body, upper and lower extrude-honed intake manifolds Scorpion s/steel exhaust Current Project.. Building a ST200 powered MKI paullorman@btopenworld.com