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CarCodeFix
P0403Medium Priority

Exhaust Gas Recirculation Circuit Malfunction

Category: Powertrain• Auxiliary Emission Controls

6 articles · 1 makes affected

What is P0403?

Exhaust Gas Recirculation (EGR) Circuit Malfunction. Electrical problem with the EGR valve control circuit.

Symptoms You May Notice

  • ●Check engine light
  • ●Failed emissions test
  • ●Rough idle
  • ●Poor performance

How to Fix It

  • ●Replace EGR valve ($200-$500, intermediate)
  • ●Repair wiring harness ($100-$300, intermediate)
  • ●Replace EGR solenoid ($100-$250, intermediate)

Owner Statistics

Based on 72,443 real owner discussions • 1823 confirmed solutions

Dataset (72,443 records)
$1,562
Average Repair Cost
3%
Success Rate
28%
DIY Repairs
72,443
Data Sources

About This Data

Statistics are aggregated from real owner discussions on Reddit, automotive forums, and YouTube comments. All data is anonymized and represents actual repair experiences reported by vehicle owners.

Frequently Appears With

These codes often appear together in owner reports. Check these if you see P0403.

Based on analysis of 10 owner reports where multiple codes appeared together.

Issues by Vehicle