Diagnostic Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: DTC P0090: Fuel Rail Pressure Sensor Current Out Of Range (Steps 1-6)

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Fig 2: DTC P0090: Fuel Rail Pressure Sensor Current Out Of Range (Steps 7-15)

Courtesy of GENERAL MOTORS CORP.

Fig 3: DTC P0090: Fuel Rail Pressure Sensor Current Out Of Range (Steps 16-22)

Courtesy of GENERAL MOTORS CORP.