DTC P0191: Fuel Rail Pressure Sensor Circuit Performance: Notes

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

NOTE: To locate components, see COMPONENT LOCATIONS . For circuit reference, see WIRING DIAGRAMS . For connector terminal identification, see CONNECTOR IDENTIFICATION . If an intermittent condition exists, see INTERMITTENT CONDITIONS under SELF-DIAGNOSTIC SYSTEM.

NOTE: For removal and installation of Bi-Fuel and CNG related components, see REMOVAL & INSTALLATION - SIERRA & SILVERADO - BI-FUEL & CNG article. For removal and installation of gasoline related components, see REMOVAL & INSTALLATION - SIERRA & SILVERADO - FLEX-FUEL & GASOLINE article.