OBD-II code · Powertrain (generic)
P0193 Fuel Rail Pressure Sensor Circuit High Input
The ECU reads a voltage from the fuel rail pressure sensor above the calibrated maximum, indicating short to power or open ground reference.
Is it safe to drive with P0193?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to battery
- PossibleOpen ground reference
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Fuel Rail Pressure Sensor, Wiring Harness
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.