1998 GTX SPEEDOMETER ISSUES

[etemplet]

1998 GTX Limited. I am not getting voltage differential readings on the sensor wires. If I go to ground I'm getting 9 volts on the purple wire. I guess the sensor could be bad causing the issue but I swapped sensors. I could have 2 bad sensors though... LOL. I need a way to test these the sensor by itself. I"m gonna have to start repairing these things as much as I a not gonna like it.

 

[Rabid]

Did you have the lanyard in. My 97 wont read without it.

 

[etemplet]

I edited my post as I am thinking this through. I'm measuring a differential voltage of the same wire as it passes though the hall effect device. I was measuring a steady 1.4 volts. Then I swapped sensors and still got 1.4 volts steady with no variation. Other sensors I tested on other skis I would get 8-9 volts on the multi meter with the sensor not working properly. This one is strange.

 

[etemplet]

Did you have the lanyard in. My 97 wont read without it.

Everything is lighting up when I hit the start button and I'm getting the 9 volts to the Purple/Yellow wire for about 30 seconds. I have good continuity on the black/orange all they way back to the MPEM. I thought I had a good spare sensor but it is doing the same exact thing. Strange for me.