Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSSFI SYSTEM
2004 Toyota Celica GT, Standard
SFI System
2004 Toyota Celica GT, StandardSECTION SFI System
- Precaution
- Fuel Pump
- Fuel Pressure Regulator
- Injector
- Fuel Tank And Line
- Mass Air Flow (MAF) Meter
- Throttle Body (1ZZ-FE)
- Throttle Body (2ZZ-GE)
- Idle Air Control (IAC) Valve
- Camshaft Timing Oil Control Valve
- EFI Main Relay
- Circuit Opening Relay
- VSV For Intake Air Control Valve
- VSV For Evaporative Emission (EVAP)
- VSV For Canister Closed Valve (CCV)
- VSV For Pressure Switching Valve
- Engine Coolant Temperature (ECT) Sensor
- Vapor Pressure Sensor
- Knock Sensor
- Heated Oxygen Sensor
- Accelerator Pedal Position Sensor
- Engine Control Module (ECM)
- Fuel Cut Rpm
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.