EG–312 ENGINE – SFI SYSTEM (2JZ–GTE) SST P11473 ECT SENSOR INSPECTION 1. DRAIN ENGINE COOLANT 2. REMOVE ECT SENSOR (a) Disconnect the ECT sensor connector. (b) Using SST, remove the ECT sensor and gasket. SST 09205–76030 Ohmmeter 3. INSPECT ECT SENSOR Using an ohmmeter, measure the resistance between the terminals. Resistance: Refer to the graph If the resistance is not as specified, replace the ECT sensor. 30 20 10 5 3 2 Acceptable 1 0.5 0.3 0.2 0.1 RESISTANCE KΩ -20 0 20 40 60 80 100 (-4) (32) (68) (104) (140)(176)(212) TEMPERATURE °C (°F) P01527 FI4741 Z02917 SST P11473 4. REINSTALL ECT SENSOR (a) Install a new gasket to the ECT sensor. (b) Using SST, install the ECT sensor. SST 09205–76030 (c) Connect the ECT sensor connector. 5. REFILL WITH ENGINE COOLANT