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HOMESERVICE MANUALSTOYOTA2005CELICA GT-S, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSSFI SYSTEMFUEL CUT RPMINSPECTION
2005 Toyota Celica GT-S, Standard

Fuel Cut Rpm: Inspection

2005 Toyota Celica GT-S, StandardSECTION Inspection
  1. WARM UP ENGINE 

    Allow the engine to warm up to normal operating temperature.

  2. CONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL 
    1. Connect the TOYOTA hand-held tester or OBD II scan tool to the DLC3.
      Fig 1: Connecting Hand-Held Tester To DLC3
      G02600855Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Please refer to the TOYOTA hand-held tester or OBD II scan tool operator's manual for further details.
  3. INSPECT FUEL CUT OFF RPM 
    1. Increase the engine speed to at least 3,500 rpm.
    2. Use a sound scope to check for injector operating noise.
      Fig 2: Using Sound Scope To Check For Injector Operating Noise
      G02600856Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Check that when the throttle lever is released injector, operation noise stops momentary and then resumes.

      HINT:

      Measure with the A/C OFF.

      Fuel return rpm: 1,400 rpm 

  4. DISCONNECT TOYOTA HAND-HELD TESTER OR OBD II SCAN TOOL 
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.