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Home › Nissan-Datsun › 2008 › Quest Base › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Control System - DTCS P0137 Through P0443 › DTC P0138, P0158 Ho2S2 › DTC Confirmation Procedure › Procedure For Malfunction A

Procedure For Malfunction A

  1. Start engine and warm it up to the normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Turn ignition switch ON.
  4. Turn ignition switch OFF and wait at least 10 seconds.
  5. Start engine and keep the engine speed between 3, 500 and 4, 000 rpm for at least 1 minute under no load.
  6. Let engine idle for 2 minutes.
  7. Check 1st trip DTC.
  8. If 1st trip DTC is detected, go to "PROCEDURE FOR MALFUNCTION A ".
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