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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1165 (Engine Control System - Qr25DE) >> DTC P0134: Ho2S1 >> Overall Function Check >> With GST

With GST

WARNING: This page is about a different car, the 2004 Nissan Sentra. 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. Set voltmeter probes between ECM terminal 35 [HO2S1 (B1) signal] and engine ground.
  3. Check the following with engine speed held at 2, 000 RPM constant under no load.
    • The voltage does not remain in the range of 0.2 to 0.4V.
  4. If NG, go to "DIAGNOSTIC PROCEDURE ".
    Fig 1: Checking Voltage Between ECM Terminal 35 & Ground
    G00777044Courtesy of NISSAN MOTOR CO., U.S.A.
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