Inspection [11/2021 - ]: Procedure
WARNING: This page is about a different car, the 2024 Lexus IS 500, 2023 Lexus IS 500, and 2022 Lexus IS 500. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT FUEL PRESSURE SENSOR NOTE:
- Do not remove the fuel pressure sensor from the fuel delivery pipe LH.
- If a fuel pressure sensor is removed, replace the fuel delivery pipe LH (fuel pressure sensor) with a new one.
- Check the fuel pressure sensor output voltage.
- Apply 5 V between terminals 1 (VC) and 2 (E2).
*a Component without harness connected
(Fuel Pressure Sensor)*b Voltage Applied between Terminals NOTE:- Be careful when connecting the leads as the fuel pressure sensor may be damaged if the leads are connected to the wrong terminals.
- Do not apply more than 6 V to terminals 1 (VC) or 2 (E2).
HINT:
If a stable power supply is not available, connect 4 nickel-metal hydride batteries (1.2 V each) or equivalent in series.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition 3 (PR) - 2 (E2) Pressure not applied to fuel pressure sensor Approximately 0.4 to 0.6 V* *: The output voltage changes depending on the voltage applied to the terminals. Output voltage = (0.08 x Voltage applied to terminals) to (0.12 x Voltage applied to terminals)
If the result is not as specified, replace the fuel delivery pipe LH (fuel pressure sensor).
*a Component without harness connected
(Fuel Pressure Sensor)
- Apply 5 V between terminals 1 (VC) and 2 (E2).