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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
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

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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