P0090 GMC - Fuel Pressure Regulator Control Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty fuel pressure sensor
  • Fuel pressure sensor harness is open or shorted
  • Fuel pressure sensor electrical circuit poor connection
  • Faulty Engine Control Module (ECM)
  • When is the code detected?

    If the current is outside of the expected range, DTC P0090 will set.

    Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • P0090 Gmc Description

    The Engine Control Module (ECM) supplies power and ground to the Fuel Rail Pressure (FRP) regulator. The ECM monitors current on the circuits to detect a failure.
    OBDII Code P0090 Gmc - Fuel Pressure Regulator Control Circuit - AutoCodes.com

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