Differential Pressure Sensor - On-Vehicle Inspection

Lexus IS250 IS220d GSE20 ALE20 2AD-FHV EMISSION CONTROL

DIFFERENTIAL PRESSURE SENSOR - ON-VEHICLE INSPECTION

1. INSPECT DIFFERENTIAL PRESSURE SENSOR

Using pliers, slide the clip to disconnect the No. 1 vacuum transmitting hose from the differential pressure sensor.

Differential Pressure Sensor - On-Vehicle Inspection. 2AD-FHV EMISSION CONTROL. Lexus IS250 IS220d GSE20 ALE20

Attach SST (turbo pressure gauge).

  • SST
  • 09992-00242

Turn the engine switch on (IG).

Using SST, apply pressure according to the value(s) in the table below.

Differential Pressure Sensor - On-Vehicle Inspection. 2AD-FHV EMISSION CONTROL. Lexus IS250 IS220d GSE20 ALE20

Measure the voltage according to the value(s) in the table below.

  • Standard voltage:
  • Tester connectionPressureSpecified condition
    PEX (E59-120) - EOM (A49-37)0 kPa (0 kgf/cm2, 0 psi)0.75 V
    20 kPa (0.2 kgf/cm2, 2.9 psi)1.53 V
    100 kPa (1.0 kgf/cm2, 14.5 psi)4.65 V

If the result is not as specified, replace the differential pressure sensor.


Remove the SST.

Using pliers, slide the clip to connect the No. 1 vacuum transmitting hose.