The 2019 Nissan Rogue's P0192 code indicates the Fuel Rail Pressure sensor circuit voltage is lower than expected. This causes the ECU to interpret fuel pressure as very low, which may not reflect actual system pressure. Understanding the cause helps determine whether it's an electrical or mechanical fuel system issue.
What P0192 Means
P0192 indicates FRP sensor voltage is below minimum threshold. The sensor outputs increasing voltage as pressure increases. Very low voltage suggests either very low actual pressure or an electrical issue causing voltage loss in the circuit.
Rogue Engine and Fuel System
The 2019 Rogue's 2.5L four-cylinder uses port fuel injection with a conventional fuel pressure system, unlike direct injection vehicles. Fuel pressure is maintained by the fuel pump and pressure regulator at approximately 40-60 PSI.
Common Causes of P0192
An open circuit in the FRP sensor wiring causes minimum voltage readings. If wiring is damaged or the connector is disconnected, the signal drops to zero or near-zero.
A failed FRP sensor stuck in low-output mode sends minimum voltage regardless of actual pressure. Internal sensor failure locks output at minimum.
Actually low fuel pressure can trigger P0192 if the sensor accurately reports it. A failing fuel pump, clogged filter, or pressure regulator leak causes genuine low pressure.
Diagnostic Approach
Check if the sensor has power and ground. Monitor FRP readings—if showing very low or zero, check wiring continuity. Verify 5V reference at the connector. If the circuit is good, test actual fuel pressure with a gauge to determine if the sensor accurately reports low pressure or is faulty.