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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Controls And Fuel - 3.6L (LF4 LGX) - DTC P0121 LF4 To DTC P0685 LF4) >> Diagnostic Information and Procedures >> DTC P0191: Fuel Rail Pressure Sensor >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
5 V Reference P018C, P0236, P0237, P0340, P0345, P0365, P0390, P0452, P0522, P0532, P0641, P16E5 P128C, P128D, P128F, P16E4, P16E5 P0121, P018D, P0236, P0641, P1400, P16E5, P2227, P222B P0191
Signal P16E4, P128F P16E5, P128F P16E5 P0191
Low Reference - P16E5 - P0191
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