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Home >> Nissan-Datsun >> 2004 >> Altima SE, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control System - 3.5L >> DTC P0133, P0153: Ho2S1 >> Overall Function Check >> With GST

With GST

  1. Start engine and warm it up to normal operating temperature.
  2. Set voltmeter probes between ECM terminal 91 [HO2S1(B1) signal] or 92 [HO2S1(B2) signal] and ground.
  3. Check the following with engine speed held at 2, 000 RPM constant under no load.
    • The voltage fluctuates between 0 to 0.3V and 0.6 to 1.0V more than 5 times within 10 seconds.
      1. time: 0 - 0.3V --> 0.6 - 1.0V --> 0 - 0.3V 
      2. times: 0 - 0.3V --> 0.6 - 1.0V --> 0 - 0.3V --> 0.6 - 1.0V --> 0 - 0.3V 
  4. If NG, go to "DIAGNOSTIC PROCEDURE ".
    Fig 1: Checking Voltmeter Probes Between ECM Terminal 91 [HO2S1(B1) signal] Or 92 [HO2S1(B2) Signal] And Ground
    G02885372Courtesy of NISSAN MOTOR CO., U.S.A.
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