DTC P0090 Fuel Pressure Regulator Solenoid Control Circuit Open (4JJ3 with DPD)

1. DTC P0090 description

The PCV is installed to the fuel supply pump and adjusts the amount of fuel force-fed to the fuel rail to control the fuel pressure. The ECM determines the PCV operation timing based on the desired fuel pressure and actual fuel pressure. If the ECM detects a malfunction in the PCV circuit, the DTC is set.

2. Condition for setting DTC P0090

Condition for running the DTC

  • The battery voltage is 9 to 16 V.
  • The engine is running.

Condition for setting the DTC

  • The ECM detects a malfunction in the PCV circuit for 2 seconds or more.

3. Action taken when DTC P0090 sets

  • The ECM illuminates the MIL. Refer to Action taken when DTC sets - Type A.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

  • The ECM limits the fuel injection quantity.
  • The ECM inhibits the EGR control.
  • The ECM inhibits the cruise control.

4. Condition for clearing DTC P0090

  • Refer to Conditions for clearing the MIL/DTC - Type A or Type B.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

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