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P0403 — EGR Circuit Malfunction

Electrical problem in the EGR valve control circuit.

Severity: MediumRepair: $100-$400Difficulty: Medium

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Common symptoms of P0403

Common causes of P0403

Repair cost & difficulty

Typical cost to fix P0403: $100-$400 · Difficulty: Medium

Pro tip: Check EGR valve connector and wiring before replacing.

Vehicles commonly affected

All makes

Related trouble codes

P0400P0404

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.