505 L4-2304cc 2.3L DSL XD-2 (1982)
Engine Speed Sensor: Testing and Inspection
Fig. 9 Exhaust gas recirculation (EGR) system.
1.
Disconnect electrical connector C2, Fig. 9, from the electronic control module.
2.
Using an ohmmeter, measure speed sensor electrical connector terminal resistance.
3.
Resistance should be 40-60 ohms. If not, replace speed sensor.