P0193: Fuel Rail Pressure Sensor A Circuit High
The rail pressure sensor voltage is too high, often from an open circuit or failed sensor.
Green, yellow, red: three ways P0193 can look
The same code can be a quick fix or a reason to pull over. Match your situation to the closest example.
Keep an eye on it
Set once.
Schedule a repair
Drivability change. Repair soon.
Stop and get help
No-start or stalling. Don't drive.
Symptoms you might notice
- Hard start
- Power loss
- Limp mode
Common causes, cheapest first
- Failed sensor
- Open wire or connector
- Wiring shorted to voltage
What you can check before calling
- Check the sensor connector
A code points to a system, not a part. Replacing parts based on the code alone is how people spend money without fixing the problem. Testing confirms the cause first.
Generic codes (second character 0) mean the same thing on every vehicle. Some manufacturers add their own details, so check service information for your exact vehicle.
Related codes
More fuel & air mixture codes
Look up another code
Cummins fault code (like 1922), J1939 SPN and FMI (like SPN 3251 FMI 0), or an OBD-II code (like P0420).
Questions
What does P0193 mean?
P0193 means "Fuel Rail Pressure Sensor A Circuit High". The rail pressure sensor voltage is too high, often from an open circuit or failed sensor.
Can I drive with code P0193?
It depends on what the vehicle is doing. Green: Set once. Yellow: Drivability change. Repair soon. Red: No-start or stalling. Don't drive.
What causes P0193?
The most common causes are: failed sensor; open wire or connector; wiring shorted to voltage.
Is P0193 a serious code?
It can be. No-start or stalling. Don't drive.
Skip the shop. We'll come to you.
Book online in about a minute, or call or text the office. We'll confirm the details and get a mechanic headed your way.