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Home >> Chevrolet >> 2008 >> Optra LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 1.6L >> Diagnostic Information and Procedures >> DTC P0135 or P0141 >> Component Testing
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Component Testing

  1. Ignition OFF, disconnect the harness connector at the heated oxygen sensor (HO2S).
  2. Test for 3-35 ohms of resistance between terminals 2 and 3.
    • If not within the specified range, replace the HO2S.
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