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Home >> Nissan-Datsun >> 2004 >> Frontier Base, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control System - KA24DE >> DTC P1144: 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 50 (Heated oxygen sensor 1 signal) and ECM ground.
  3. Check the following with engine speed held at 2,000 RPM constant under no load.
    • The maximum voltage is below 0.8V at least 1 time.
    • The minimum voltage is below 0.35V at least 1 time.
  4. If NG, go to "DIAGNOSTIC PROCEDURE ".
Fig 1: Checking Maximum Or Minimum Voltage
G00855943Courtesy of NISSAN MOTOR CO., U.S.A.
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