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Home >> Kia >> 2005 >> Spectra EX, 2.0 1, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures - 2.0L >> Troubleshooting For DTC >> DTC P2270: O2 Sensor Signal Stuck Lean (Bank 1 Sensor 2) >> Inspection Procedure

Inspection Procedure

  1. CHECK DTC RELATING TO CATALYST AND REAR HO2S 
    1. Connect a Hi-Scan (Pro) to the data link connector.
    2. Turn the ignition switch ON and monitor any other DTCs relating to catalyst and rear HO2S.

    Are DTCs relating to catalyst or rear HO2S also set?

    1. No:  Go to next step.
    2. Yes: Do all repairs associated with those codes before proceeding with this procedure.
  2. CHECK AIR LEAKAGE 

    Check the exhaust system for leaks

    Are any leaks found?

    1. No:  Go to next step.
    2. Yes: Repair or replace it.
  3. CHECK CATALYTIC CONVERTER AND REAR HO2S CONDITIONS 

    Thoroughly check the catalyst and rear HO2S for contamination, deterioration or damage.

    Is linear O2 sensor contaminated, deteriorated or damaged?

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