n_grimm
New member
- Joined
- Oct 27, 2010
- Messages
- 30
- Reaction score
- 0
- Points
- 0
- Vehicle Year
- 1988
- Vehicle
- Ford
- Engine Size
- 2.9
Hello all. I have installed an MpGuino mpg gauge, similar to a Scangauge II on my 88 BII. It gives me instant MPG, tank MPG speed, distance traveled etc but has one problem. If I go below around 10 mph the speed and instant mpg drop to zero so it isn't logging mpg or distance until I speed up. I have it connected to the vehicle speed sensor (VSS) at the ECM which from what I've read here comes from the ABS on the rear diff. The MpGuino folks said that if it is just a magnetic sensor, they don't work at very low speeds. INot a problem for the ECM to control cruise control or converter lock up. I'm guessing the newer rigs with the electronic speedo use a different sensor. Anyone know if there would also be VSS on the transfer case and if so what type it would be? Thank you.