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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 414 (Engine Control System - DTC) >> DTC P1147, P1167: Ho2S2 >> Component Inspection >> Heated Oxygen Sensor 2 >> With CONSULT-II

With CONSULT-II

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-II.
  2. Start engine and warm it up to the normal operating temperature.
  3. Turn ignition switch OFF and wait at least 10 seconds.
  4. Start engine and keep the engine speed between 3,500 and 4,000 RPM for at least 1 minute under no load.
  5. Let engine idle for 1 minute.
    Fig 1: CONSULT-II Display Screen
    G00877418Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Select "FUEL INJECTION" in "ACTIVE TEST" mode and select "HO2S2 (B1)/(B2)" as the monitor item with CONSULT-II.
    Fig 2: CONSULT-II Display Screen
    G00877419Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Check "HO2S2 (B1)/(B2)" at idle speed when adjusting "FUEL INJECTION" to +/-25%.
    Fig 3: Typical Waveform
    G00877420Courtesy of NISSAN MOTOR CO., U.S.A.

    "HO2S2 (B1)/(B2)" should be above 0.70V at least once when the "FUEL INJECTION" is +25%. 

    "HO2S2 (B1)/(B2)" should be below 0.18V at least once when the "FUEL INJECTION" is -25%. 

CAUTION:
  • Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.
  • Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.