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 DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESPECIFICATIONSSFI SYSTEM (SERVICE SPECIFICATIONS)SERVICE DATA
2004 Toyota Celica GT, Standard
Service Data
2004 Toyota Celica GT, StandardSECTION Service Data
SFI Service Specifications
| Fuel pressure regulator | Fuel pressure | 301 - 347 kPa (3.1 - 3.5 kgf/cm2 , 44 - 50 psi) | ||
| Fuel pump | Resistance | at 20°C (68°F) | 0.2 - 3.0 Ω | |
| Injector | Resistance | at 20°C (68°F) | 13.4 - 14.2 Ω | |
| Injection volume | 47 - 58 cm3 (2.7 - 3.3 cu in.) per 15 seconds | |||
| Difference between each cylinder | 10 cm3 (0.6 cu in.) or less | |||
| Fuel leakage | One drop or less per 12 minutes | |||
| Mass airflow meter | Resistance | at -20°C (-4°F) | 13.6 - 18.4 Ω | |
| at 20°C (68°F) | 2.21 - 2.69 Ω | |||
| at 60°C (140°F) | 0.49 - 0.67 Ω | |||
| Throttle position sensor (1ZZ-FE engine) | Clearance between stop screw and lever | |||
| 0 mm (0 in.) | VTA - E2 | 0.2 - 5.7 Ω | ||
| Throttle valve fully open | VTA - E2 | 2.0 - 10.2 Ω | ||
| - | VC - E2 | 2.5 - 5.9 Ω | ||
| Throttle control motor(2ZZ-GE engine) | Resistance | at 20°C (68°F) | 0.3 - 100 Ω | |
| Camshaft timing oil control valve | Resistance | at 20°C (68°F) | 6.9 - 7.9 Ω | |
| VSV (CCV) | Resistance | at 20°C (68°F) | 24 - 30 Ω | |
| VSV (Pressure switching valve) | Resistance | at 20°C (68°F) | 37 - 44 Ω | |
| at 120°C (248°F) | 51 - 62 Ω | |||
| VSV (EVAP) | Resistance | at 20°C (68°F) | 27 - 33 Ω | |
| VSV (Intake air control valve) | Resistance | at 20°C (68°F) | 37 - 44 Ω | |
| ECT sensor | Resistance | at -20°C (-4°F) | 10 -20 Ω | |
| at 0°C (32°F) | 4 - 7 Ω | |||
| at 20°C (68°F) | 2 - 3 Ω | |||
| at 40°C (104°F) | 0.9 - 1.3 Ω | |||
| at 60°C (140°F) | 0.4 - 0.7 Ω | |||
| at 80°C (176°F) | 0.2 - 0.4 Ω | |||
| Vapor pressure sensor | Power source voltage | 4.5 - 5.5 V | ||
| Remove fuel tank cap | Terminal 2 - 3 | 3.0 - 3.6 V | ||
| Knock sensor(2ZZ-GE engine) | Resistance | at 20°C (68°F) | 120 - 280 Ω | |
| Heated oxygen sensor(1ZZ-FE engine) | Heater coil resistance | 5 - 10 Ω | ||
| Heated oxygen sensor(2ZZ-GE engine) | Heater coil resistance | 11 - 16 Ω | ||
| Fuel cut rpm | Fuel return rpm | 1,500 rpm | ||
RENDER: 1.0x
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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.