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 PriusFACTORY OEM SERVICE PROCEDURE
Service Data
Fuel Service Data Specification
| Fuel pressure | at idle | 304 to 343 kPa (3.1 to 3.5 kgf/cm2 , 44 to 50 psi) |
| 5 minutes after the engine has stopped | 147 kPa (1.5 kgf/cm2 , 21 psi) or more | |
| Fuel injector assy | ||
| Resistance | 1 - 2 | 13.45 to 14.15 Ω at 21°C (68°F) |
| Injection volume | Standard | 36 to 46 cm3 (2.1 to 2.8 cu in.) |
| Difference between each fuel injector | 10 cm3 (0.6 cu in.) or less | |
| Leakage | Standard | 1 drop or less per 12 minutes |
| Fuel tank assy (fuel pump) | ||
| Resistance | 3 - 7 | 0.2 to 3.0 Ω at 20°C (68°F) |
| Compression spring (Exhaust pipe assy front x Exhaust manifold) | ||
| Free length | Minimum | 40.5 mm (1.594 in.) |
| Compression spring (Exhaust pipe assy front x Exhaust pipe assy tail) | ||
| Free length | Minimum | 38.5 mm (1.516 in.) |
Factory Service Tools
Use the Manual With the Right Hardware
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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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