OBD II Fault Code P0090 :

Description of Fault code P0090

FUEL RAIL PRESSURE (FRP) REGULATOR CONTROL CIRCUIT OPEN

Possible failuer P0090

• FRP REGULATOR solenoid harness open.
• FRP REGULATOR solenoid malfunction.

Diagnostic Procedure using AutoHex II Scan Tool

• FRP REGULATOR driver detect that abnormal current during predetermined duration.

Test Conditions using AutoHex tester

• Engine running.

Clear Fault codes Conditions

• FRP REGULATOR driver detect that abnormal current during predetermined duration.

MIL Status

• Check Engine Light ON

Note:

• AutoHex II is a professional Auto diagnostic.
• This fault code is a GERENRIC fault code, some cars may change the meaning of this fault code.
  To get the accurate fault code description you may use AutoHex II

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