What does code P0193 mean?

Q: What does code P0193 mean?

The fuel rail pressure sensor signal is reading too high. Safe to drive? Use caution. Stalling or limp mode are possible.

P0193: Fuel Rail Pressure Sensor 'A' Circuit High

Severity: high

What it means: The fuel rail pressure sensor signal is reading too high.

Safe to drive? Use caution. Stalling or limp mode are possible.

Common symptoms

Hard start
Stalling
Reduced power

Likely causes, ranked

Faulty fuel rail pressure sensorShop
Wiring short or open circuitDIY
Actual excess pressure from a regulator faultShop

What it means: The fuel rail pressure sensor signal is reading too high.

Severity: High. Safe to drive? Use caution. Stalling or limp mode are possible.

DIY or shop?

Shop diagnosis is recommended.

Before you replace parts

Read all stored codes and freeze-frame data. Fix misfire, fuel or sensor codes before chasing emissions codes.
Check the simple things first: connectors, vacuum hoses, fluid levels and the gas cap.
Clear the code only after a repair, then confirm it stays off after a few drives.
Check your VIN for recalls and service bulletins.

Safety / mechanic note

Verify with a mechanic. This code can involve stalling, engine damage or loss of power. If the check-engine light is flashing, or the car stalls or runs badly, stop driving and have it inspected.