My '80 Spirit and AMX also had a reset-able device in the speedometer cable. It is a cylindrical affair and plugs into the speedometer cable just below the Master Cylinder. The only function it performs is to turn on the Check Engine light. It is mounted somewhat the same way that speed sensors for factory cruise controls are mounted which means you have a 2 piece speedometer cable. This was also the location that was used to install the speed sensor for the Mopar Retrofit fuel injection system that is installed on the Spirit. John. _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list or go to http://www.amc-list.com