top of page

P0493

Overview

Code

P0493

Code Type

P

Code Class

P0

System

Emissions

Severity Level

Medium

Emissions Related

true

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0493 indicates a malfunction in the EGR pressure sensor

Symptoms

Poor acceleration; Engine misfire

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

EGR pressure sensor

Possible Causes

Faulty EGR pressure sensor; EGR sensor wiring fault

Diagnostic Steps

1 Inspect EGR pressure sensor 2 Test sensor output

Drive Safety Notes

Potential emission failures

bottom of page