Two wire speed sensor

[400hp302ci]

I have a 97 Challenger. My speedometer was not functioning so I purchased a new speed sensor. The new speed sensor has three wires, but when I removed my original speed sensor it has only two wires. How do I wire up the three wire speed sensor into my two wire system?

 

[ToddinTO]

Hi, were you able to connect the speed sensor OK? The sensor in the Challenger is just speed, whereas the one you received is likely speed and water temp.