What does code P0193 mean?
High signal detected from fuel rail pressure sensor indicating excessive pressure
OBD-II Code
P0193 — Fuel Rail Pressure Sensor High Input
High signal detected from fuel rail pressure sensor indicating excessive pressure
Common symptoms
- Rich mixture
- dark exhaust smoke
- increased fuel consumption
Possible causes
- Stuck regulator
- blocked return line
- signal shorted to voltage
Initial recommendation
Inspect regulator and return line, replace sensor if necessary.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0193 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more codes