LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2010 >> M45 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0159 >> DTC P0133, P0153 A/F Sensor 1 >> DTC Confirmation Procedure >> With GST
April 5, 2026: LEMON Manuals is launched! Read the announcement.

With GST

  1. Start engine and warm it up to normal operating temperature.
  2. Select Service $01 with GST.
  3. Calculate the total value of "Short term fuel trim" and "Long term fuel trim" indications.

    Make sure that the total percentage should be within ± 15%.

    If OK, go to the following step.

    If NG, check the following.

    • Intake air leakage
    • Exhaust gas leakage
    • Incorrect fuel pressure
    • Lack of fuel
    • Fuel injector
    • Incorrect PCV hose connection
    • PCV valve
    • Mass air flow sensor
  4. Turn ignition switch OFF and wait at least 10 seconds.
  5. Turn ignition switch ON.
  6. Turn ignition switch OFF and wait at least 10 seconds.
  7. Start engine and keep the engine speed between 3, 500 and 4, 000 RPM for at least 1 minute under no load.
  8. Let engine idle for 1 minute.
  9. Increase the engine speed to between 4, 000 and 5, 000 RPM and maintain that speed for 10 seconds.
  10. Fully release accelerator pedal and then let engine idle for approximately 1 minute.
  11. Check 1st trip DTC.
  12. If 1st trip DTC is displayed, go to "DIAGNOSIS PROCEDURE ".
scientia non olet · About LEMON Manuals