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.
2004 Toyota Avalon XLSFACTORY OEM SERVICE PROCEDURE
Service Data
SFI System Components Service Specifications
| Fuel pressure regulator | Fuel pressure | at no vacuum | 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 | 60 - 73 cm3 (3.4 - 4.5 cu in.) per 15 sec. | |||
| Difference between each cylinder | 13 cm3 (0.8 cu in.) or less | |||
| Fuel leakage | 1 drop or less per 12 minutes | |||
| MAF meter | Resistance (THA - E2) | at - 20°C (-4°F) | 13.6 - 18.4 kΩ | |
| at 20°C(68°F) | 2.21 - 2.69kΩ | |||
| at 60°C(140°F) | 0.49 - 0.67 kΩ | |||
| Throttle body | Throttle opener setting speed | 1,100 - 1,700 rpm | ||
| Throttle position sensor | Resistance | |||
| Throttle valve fully closed | VTA - E2 | 0.2 - 6.3 kΩ | ||
| Throttle valve fully open | VTA - E2 | 2.0 - 10.2 kΩ | ||
| VC - E2 | 2.5 - 5.9 kΩ | |||
| Camshaft timing oil control valve | Resistance | at 20°C (68°F) | 6.9 - 7.9 Ω | |
| VSV for EVAP | Resistance | at 20°C(68°F) | 27 - 33 Ω | |
| VSV for ACIS | Resistance | at 20°C(68°F) | 33 - 39 Ω | |
| VSV for canister closed valve | Resistance | at 20°C (68°F) | 25 - 30 Ω | |
| at 120°C(248°F) | 33 - 42 Ω | |||
| VSV for pressure switching valve | Resistance | at 20°C(68°F) | 37 - 44 Ω | |
| at 120°C (248°F) | 51 - 62 Ω | |||
| Vapor Pressure Sensor | Power source voltage | 4.5 - 5.5 V | ||
| ECT sensor | Resistance | at -20°C (-4°F) | 10 - 20 kΩ | |
| at 0°C(32°F) | 4 - 7 kΩ | |||
| at 20°C(68°F) | 2 - 3 kΩ | |||
| at 40°C(104°F) | 0.9 - 1.3 kΩ | |||
| at 60°C(140°F) | 0.4 - 0.7 kΩ | |||
| at 80°C(176°F) | 0.2 - 0.4 kΩ | |||
| A/F sensor | Heater coil resistance | at 20°C (68°F) | 0.8 - 1.4 Ω | |
| at 800°C (1472°F) | 1.8 - 3.2 Ω | |||
| Heated oxygen sensor | Heater coil resistance | at 20°C (68°F) | 11 - 16 Ω | |
| at 800°C (1472°F) | 23 - 32 Ω | |||
| Fuel cut rpm | Fuel return rpm | 1,200 rpm | ||
Factory Service Tools
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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.
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