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1GR-FE EMISSION CONTROL – AIR FUEL RATIO SENSOR EC–21 EC REMOVAL CAUTION: Wear protective gloves when removing the sensor. • The exhaust pipe assembly is extremely hot • Confirm that the exhaust pipe assembly has cooled 1. DISCONNECT CABLE FROM NEGATIVE BATTERY 2. REMOVE AIR FUEL RATIO SENSOR manifold stay. (for LH Bank) (b) Disconnect the 2 air fuel ratio sensor connectors. the exhaust manifold. 09224-00010 INSPECTION 1. REMOVE AIR FUEL RATIO SENSOR (1) Using an ohmmeter, measure the resistance between the terminals. If the result is not as specified, replace the air A128840 A130153 Ohmmeter A128842E01 Tester Connection Specified Condition 1 (HT) - 2 (+B) 1.8 to 3.4 Ω at 20°C (68°F) 1 (HT) - 4 (E) 10 k Ωor higher |