Drive with caution — fix soon.
This code means the fuel rail pressure sensor circuit is reading higher voltage than expected, often because the signal is stuck high or the circuit is open. Typical causes include a failed sensor, an open or broken wire, or a poor connection, and sometimes actual high fuel pressure. Diagnosis usually involves testing the circuit and verifying real fuel pressure before repairing wiring or replacing the sensor.
$150 – $500
Varies by vehicle and root cause.
Short trips may be okay if the car runs normally, but be cautious since it involves fuel pressure. If you notice hesitation, power loss, or hard starting, avoid long drives and get it checked soon.
Most repairs fall between $150 and $500. A sensor or wiring repair is on the lower end, while a true high fuel pressure problem can raise the cost depending on the part involved.
It's moderately serious because it can affect engine performance and may trigger reduced-power mode. Often it's just the sensor or wiring, but prompt diagnosis avoids bigger fuel system trouble.
High input often points to an open circuit or broken signal wire, but it can also be a failed sensor or genuinely high fuel pressure. A mechanic tests the circuit and pressure to confirm the cause.