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.
2003 Toyota Land CruiserFACTORY OEM SERVICE PROCEDURE
Service Data
SFI SERVICE DATA
| Fuel pressure regulator | Fuel pressure at no vacuum | 265 - 304 kPa (2.7 - 3.1 kgf/cm2 , 38 - 44 psi) |
| Fuel pump | Resistance at 20°C (68°F) | 0.2 - 3.0ohm |
| Injector | Resistance at 20°C (68°F) | 13.4 - 14.2 ohm |
| Injection volume | 56 - 69 cm3 (3.4 - 4.2 cu in.) per 15 seconds | |
| 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) | 12.5 - 16.9 kohm |
| Resistance (THA - E2) at 20°C (68°F) | 2.19 - 2.67 kohm | |
| Resistance (THA - E2) at 60°C (140°F) | 0.50 - 0.68 kohm | |
| Throttle body | Throttle body fully closed angle | 5.5° |
| Accelerator pedal position sensor | Standard throttle valve opening percentage Sensor lever full-open position | 60 % or more |
| Throttle control motor | Motor resistance at 20°C (68°F) | 0.3 - 100 ohm |
| VSV for EVAP | Resistance at 20°C (68°F) | 30 - 34 ohm |
| VSV for vapor pressure sensor | Resistance at 20°C (68°F) | 30 - 36 ohm |
| ECT sensor | Resistance at -20°C (-4°F) | 10 - 20 kohm |
| Resistance 0°C (32°F) | 4 - 7 kohm | |
| Resistance 20°C (68°F) | 2 - 3 kohm | |
| Resistance 40°C (104°F) | 0.9 - 1.3 kohm | |
| Resistance 60°C (140°F) | 0.4 - 0.7 kohm | |
| Resistance 80°C (176°F) | 0.2 - 0.4 kohm | |
| Vapor pressure sensor | Power source voltage | 4.5 - 5.5 V |
| Heated oxygen sensor | Heater coil resistance at 20°C (68°F) | 11 - 16 ohm |
| Fuel cut rpm | Fuel return rpm | 1,000 rpm |
| Fuel pump resister | Resistance at 20°C (68°F) | 0.70 - 0.76 ohm |
| VSV for CCV | Resistance at 20°C (68°F) | 24 - 30 ohm |
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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