P01C6
Fuel Pressure Sensor A Circuit High
Generic OBD-II
Common symptoms
What you'll notice
- Check and clean the fuel pressure sensor connection
- Inspect and replace the fuel pressure sensor if necessary
- Check and repair any wiring issues related to the fuel pressure sensor circuit
- Inspect and repair any issues with the fuel pressure regulator
- Check for any fuel leaks and repair as needed
Common causes
Most likely first
- Faulty fuel pressure sensor
- Issues with the wiring or connectors connected to the fuel pressure sensor
- Problems with the fuel pump or fuel filter
- Fuel pressure regulator malfunction
- Fuel injector issues
How to diagnose & fix
Work through it in order
- Engine misfires or runs rough
- Decreased fuel efficiency
- Engine stalls or hesitates
- Difficulty starting the vehicle
- Illuminated check engine light
Read & clear P01C6 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.