P0192

High Severity

Fuel Rail Pressure Sensor Circuit Low

Fuel System

P0192 — Instant Answer

Fuel Rail Pressure Sensor Circuit Low

Severity: HIGH SEVERITY

Meaning: Fuel rail pressure sensor reads too low. Could be a sensor fault or actually low fuel pressure.

Safe to drive? NO if CEL is flashing. YES with caution if solid, but repair this week.

Estimated repair cost: $30 - $300

Most common causes:

  • 1. Faulty sensor (35-45% of cases)
  • 2. Weak fuel pump (10-25% of cases)
  • 3. Clogged fuel filter (10-25% of cases)
  • 4. Fuel line restriction (5-10% of cases)

Symptoms

  • ⚠️Loss of power
  • ⚠️Engine stalling
  • ⚠️Hard starting
  • ⚠️Rough running

Related Symptoms

Common Causes

Faulty sensorlikely
Weak fuel pumppossible
Clogged fuel filterpossible
Fuel line restrictionunlikely

How to Diagnose P0192

  1. 1Check fuel pressure with mechanical gauge
  2. 2If actual pressure is fine, replace sensor
  3. 3Check fuel filter
  4. 4Test fuel pump

OEM Diagnostic Flowchart

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Related Resources

Repair guides, symptom pages, and wiring diagrams related to P0192.

Frequently Asked Questions

Can a bad fuel pump cause P0192?
Yes — if actual fuel pressure is low, the sensor is reading correctly and the fuel pump or filter needs attention.
How to tell sensor vs pump?
Compare the sensor reading to a mechanical fuel pressure gauge. If they match and pressure is low, the pump is weak. If mechanical gauge shows normal pressure, the sensor is bad.

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Author & Review

Written by AllOEMManuals Editorial Team. Reviewed by ASE-certified technicians and updated with factory-reference checks for fitment-sensitive steps.

This guide was drafted with AI assistance and reviewed for accuracy by a human editor.

Last updated: 2026-05-07

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