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P0193

Overview

Code

P0193

Code Type

P

Code Class

P0

System

Engine

Severity Level

High

Emissions Related

false

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0193 indicates high input from the fuel rail pressure sensor

Symptoms

Check Engine Light illuminated; Poor acceleration; Engine stalling

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Fuel pressure monitoring and delivery control system

Possible Causes

Wiring short to voltage; Faulty pressure sensor; Fuel pressure regulator issues

Diagnostic Steps

1 Inspect sensor wiring for shorts; 2 Measure fuel rail pressure with mechanical gauge; 3 Test sensor voltage; 4 Replace sensor if readings are abnormal

Drive Safety Notes

Engine may stall unexpectedly Avoid high-speed driving until repair

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