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CONTROL SYSTEM [FS] 01–40B–37 01–40B KNOCK SENSOR REMOVAL/INSTALLATION [FS] A3U014018921W02 1. Disconnect the knock sensor connector. Tightening torque 19.6—34.3 N·m {2.00—3.49 kgf·m, 14.5—25.2 ft·lbf} End Of Sie HEATED OXYGEN SENSOR (HO2S) INSPECTION [FS] A3U014018861W01 HO2S (Front and Rear) Voltage Inspection Note • Perform the following test only when directed. 1. Warm up the engine and run it at idle. • (+) lead—HO2S terminal A • (–) lead—HO2S terminal B 4. Run the engine at 3,000 rpm until the voltmeter indicates approx. 0.5—0.7 V. 5. Verify that the voltmeter needle moves when the engine speed increases and decreases suddenly • If not as specified, replace the HO2S. • If the HO2S is okay, but PID value or PCM Specification Circuit Open/Short Inspection 1. Remove the PCM. (See 01–40B–7 PCM REMOVAL/INSTALLATION [FS].) PCM as shown. 3. Tighten the connector attaching screw. Tightening torque 7.9—10.7 N·m {80—110 kgf·cm, 69.5—95.4 in·lbf} 4. Inspect for an open or short circuit in the following wiring harnesses by probing the applicable • If there is an open or short circuit, repair or • If there is no open or short circuit, replace the HO2S. Engine condition Voltage (V) Acceleration 0.5—1.0 Deceleration 0—0.5 Z3U0140W023 X3U140WE8 1712-1U-01G(01-40B).fm 37 ページ 2001年6月29日 金曜日 午前9時51分 |