EG–288 ENGINE – SFI SYSTEM (2JZ–GTE) MAF METER INSPECTION 1. INSPECT MAF METER RESISTANCE Using an ohmmeter, measure the resistance between terminals THA and E2. Between terminals | Resistance | Temperature THA–E2 | 10–20 kΩ | –20°C (–4°F) THA–E2 | 4–7 kΩ | 0°C (32°F) THA–E2 | 2–3 kΩ | 20°C (68°F) THA–E2 | 0.9–1.3 kΩ | 40°C (104°F) THA–E2 | 0.4–0.7 kΩ | 60°C (140°F) If the resistance is not as specified, replace the MAF meter. Ohmmeter E2 THA F16961 2. INSPECT MAF METER OPERATION (a) Connect the MAF meter connector. (b) Connect the negative (–) terminal cable to the battery. (c) Using a voltmeter, connect the positive (+) tester probe to terminal VG, and negative (–) tester probe to terminal E21. (d) Turn the ignition switch ON. (e) Blow air into the MAF meter, and check that the voltage fluctuates. If operation is not as specified, replace the MAF meter. (f) Turn the ignition switch OFF. (g) Disconnect the negative (–) terminal cable from the battery. (h) Disconnect the MAF meter connector. Voltmeter Air V VG E21 P12997