2003 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Service Data

AIR CONDITIONING SERVICE DATA

Fuel pressure regulator Fuel pressure 304 - 343kPa
(3.1 - 3.5kgf/cm2 , 44 - 50psi)
Fuel pump Resistance : at 20 °C (68 °F) 0.2 - 3.0 ohm
Injector Resistance : at 20 °C (68 °F) 13.4 - 14.2ohm
Injection volume 60 - 73 cm3 (3.7 - 4.5 cu in.) per 15 sec.
Difference between each cylinder 13 cm3 (0.6 cu in.) or less
Fuel leakage One drop or less per minute
MAF meter Resistance (THA- E2) :
  1. at -20°C (-4°F)
  2. at 20°C (68°F)
  3. at 60°C (140°F)
  1. 13.6 - 18.4 kohm
  2. 2.21 - 2.69 kohm
  3. 0.49 - 0.67 kohm
Throttle body Throttle body fully closed angle 4°
Throttle position sensor Resistance (VC - ETA) : at 20°C (68°F) 1.25 - 2.35 kohm
Accelerator pedal position sensor Resistance (Vcp1 - Ep1 ), (Vcp2 - Ep2 ) : at 20°C (68°F) 1.5 - 6.0 kohm
Throttle control motor Motor resistance : at 20°C (68°F) 0.3 - 100 ohm
Camshaft timing oil control valve Resistance : at 20°C (68°F) 6.9 - 7.9 ohm
Fuel pump resistor Resistance : at 20°C (68°F) 0.70 - 0.76 ohm
VSV for EVAP Resistance : at 20°C (68°F) 30 - 34 ohm
VSV for canister closed valve (CCV) Resistance :
  1. at 20°C (68°F)
  2. at 120°C (248°F)
  1. 25 - 30ohm
  2. 33 - 42 ohm
VSV for pressure switching valve Resistance :
  1. at 20°C (68°F)
  2. at 120°C (248°F)
  1. 37 - 44 ohm
  2. 51 - 62ohm
VSV for acoustic control induction system (ACIS) Resistance : at 20°C (68°F) 33 - 39 ohm
Vapor pressure sensor Voltage (VC-E2) 4.5 - 5.5 V5
ECT sensor Resistance :
  1. at -20°C (-4°F)
  2. 0°C (32°F)
  3. 20°C (68°F)
  4. 40°C (104°F)
  5. 60°C (140°F)
  6. 80°C (176°F)
  1. 10 - 20 ohm
  2. 4 - 7ohm
  3. 2 - 3ohm
  4. 0.9 - 1.3 ohm
  5. 0.4 - 0.7 ohm
  6. 0.2 - 0.4 ohm
Heated oxygen sensor Heater coil resistance :
  1. at 20°C (68°F)
  2. 800°C (1,472°F)
  1. 11 - 16ohm
  2. 23 - 32 ohm
VVT sensor Resistance :
  1. Cold
  2. Hot
  1. 835 - 1,400 ohm
  2. 1,060 - 1,645 ohm
Fuel cut rpm Fuel return rpm 1,400 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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