Mike's Workshop Manuals
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Kia
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2012
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Rio LX, 4D Hatchback, Automatic Trans
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Diagnosis (1 Of 2)
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DTC P0091: Fuel Pressure Regulator 1 Control Circuit Low
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General Information
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Signal Waveform & Data
Signal Waveform & Data
Fig 1: Fuel Pressure Regulator Signal Waveform (At Idle)
Courtesy of KIA MOTORS AMERICA, INC.
Courtesy of KIA MOTORS AMERICA, INC.