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Home >> Nissan-Datsun >> 2004 >> Pathfinder LE, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P1144, P1164: 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 35 (HO2S1 bank 1 signal) or 16 (HO2S1 bank 2 signal) and engine ground.
  3. Check one of the following with engine speed held at 2,000 RPM constant under no load.
    • The maximum voltage is below 0.8V at least one time.
    • The minimum voltage is below 0.35V at least one time.
  4. If NG, go to "DIAGNOSTIC PROCEDURE  " .
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