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P0190

Overview

Code

P0190

Code Type

P

Code Class

P0

System

Engine

Severity Level

Medium

Emissions Related

false

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0190 indicates a fuel rail pressure sensor circuit malfunction

Symptoms

Hard starting; 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

Possible Causes

Faulty fuel rail pressure sensor; Wiring issues

Diagnostic Steps

1 Compare fuel pressure data with mechanical gauge; 2 Inspect sensor wiring; 3 Test sensor voltage; 4 Replace sensor if faulty

Drive Safety Notes

Engine may stall unexpectedly

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