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Home >> Nissan-Datsun >> 2002 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 394 (Engine Control System) >> DTC P1144, P1164: Ho2S1 >> Component Inspection >> Heated Oxygen Sensor 1 >> With CONSULT-II
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With CONSULT-II

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.
  1. Start engine and warm it up to normal operating temperature.
  2. Select "MANU TRIG" and adjust "TRIGGER POINT" to 100% in "DATA MONITOR" mode with CONSULT-II.
    Fig 1: Scan Tool Display - Data Monitor
    G00796309Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Select "HO2S1 (B1)" and "HO2S1 MNTR (B1)".
  4. Hold engine speed at 2,000 RPM under no load during the following steps.
  5. Touch "RECORD" on CONSULT-II screen.
  6. Check the following.
    • "HO2S1 MNTR (B1)/(B2)" in "DATA MONITOR" mode changes from "RICH" to "LEAN" to "RICH" more than 5 times in 10 seconds.

      5 times (cycles) are counted as shown at right.

    • "HO2S1 (B1)/(B2)" voltage goes above 0.6V at least once.
    • "HO2S1 (B1)/(B2)" voltage goes below 0.3V at least once.
    • "HO2S1 (B1)/(B2)" voltage never exceeds 1.0V.
    Fig 2: Scan Tool Display - Data Monitor (1 Of 2)
    G00796310Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 3: Scan Tool Display - Data Monitor (2 Of 2)
    G00796311Courtesy of NISSAN MOTOR CO., U.S.A.
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.
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