Air Charge Temperature (Act) Sensor
Sensor is located in throttle body or air cleaner (in No. 1 intake manifold runner on Tempo 2.3L and Topaz 2.3L).
ACT sensor requires a 5-volt reference signal during engine operation. With sensor disconnected, sensor may be checked by measuring resistance between sensor terminals. For specifications, see SENSOR RANGE CHARTS article in the ENGINE PERFORMANCE section. For additional testing information, see CIRCUIT TEST DA in TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE section.