LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Control System - 3.5L) >> DTC P0139, P0159: Ho2S2 >> Component Inspection >> Heated Oxygen Sensor 2 >> With CONSULT-II

With CONSULT-II

WARNING: This page is about a different variant/trim than selected.
  1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-II.
  2. Start engine and warm it up to the normal operating temperate.
  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 Diagnosis Function Display (1 Of 2)
    G02885448Courtesy 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 Diagnosis Function Display (2 Of 2)
    G02885449Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Check "HO2S2 (B1)/(B2)" at idle speed when adjusting "FUEL INJECTION" to +/-25%.
    Fig 3: Identifying Heated Oxygen Sensor 2 Voltage Graph
    G02885450Courtesy of NISSAN MOTOR CO., U.S.A.

    "HO2S2 (B1)/(B2)" should be above 0.63V at least once when the "FUEL INJECTION" is +25%. 

    "HO2S2 (B1)/(B2)" should be below 0.48V 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.