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Home >> Kia >> 2005 >> Spectra5 2.0 2, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures - 2.0L >> Troubleshooting For DTC >> DTC P0140: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) >> Inspection Procedure
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Inspection Procedure

  1. CHECK OTHER DTCS
    1. Connect a Hi-Scan (Pro) to the data link connector.
    2. Turn ignition switch to ON position and monitor other DTCs.

    Are any other DTCs also set?

    1. No:  Go to next step.
    2. Yes: Do all repairs associated with those codes before proceeding with this procedure.
  2. CHECK HO2S AND ECM CONNECTORS

    Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. See CONNECTOR INSPECTION PROCEDURE .

    Are all connectors good?

    1. Yes:  Go to next step.
    2. No: Repair or replace it.
  3. CHECK INJECTOR

    Check the injector for the following items:

    • Injector damage
    • Injector leakage

    Is the injector okay?

    1. Yes:  Go to next step.
    2. No: Replace it.
  4. CHECK FUEL LINE PRESSURE
    1. Release the fuel pressure to install the fuel pressure gauge.
    2. After tightly installing the fuel pressure gauge to the fuel delivery pipe, start the engine and let it idle.
    3. Check fuel line pressure.

    Is fuel line pressure normal?

    1. Yes:  Proceed with ECM PROBLEM INSPECTION PROCEDURE .
    2. No: Repair it.