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TuningBot DTC Database · v4.37.15

P0193 Fuel Rail Pressure Sensor Circuit High Input

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainFuelOBD2

What P0193 means

P0193
Fuel Rail Pressure Sensor Circuit High Input Generic · fuel Data confidence 90%

The control module detected that the signal in the Fuel Rail Pressure circuit stayed above the expected operating range.

Symptoms

  • Possible hard starting or long cranking
  • Possible reduced power or cutting out
  • MIL illuminated

Possible causes

  • Wiring short to positive
  • FRP sensor

Recommended checks

  • Read specified vs actual rail pressure at cranking, idle and load
  • Check low-pressure supply (pressure/volume) first
  • Check control valve/regulator operation
  • Measure injector return flow where applicable
  • Inspect wiring and connectors of pressure components

Related and nearby codes

How to read P0193

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

193

Specific fault index within the subsystem.

Frequently asked questions about P0193

What does P0193 mean?

Fuel Rail Pressure Sensor Circuit High Input. The control module detected that the signal in the Fuel Rail Pressure circuit stayed above the expected operating range.

Is P0193 generic or manufacturer-specific?

P0193 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0193 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

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