P0401 Fault Code — EGR Insufficient Flow

Severity: 🟠 High — diagnose within 1–2 days

Not enough exhaust gas recirculation.

Can You Drive With This Code?

Yes. Driveable, but emissions and DPF will both suffer. P0401 is one of the top reasons modern BS6 diesels eventually develop expensive DPF problems.

Common Symptoms

Common Causes

How We Fix It

EGR cleaning + intake manifold decarbonization.

Repair Cost in Hyderabad

₹4,500–₹38,000 — EGR cleaning ₹4.5k–8k; EGR valve replacement ₹14k–28k; cooler replacement ₹22k–38k.

Frequently Asked Questions

What does P0401 mean?

P0401 (EGR Insufficient Flow) means Not enough exhaust gas recirculation. Common symptoms include pinging, knock, failed emissions.

How much does P0401 repair cost in Hyderabad?

At GarageNation Hyderabad, P0401 repair typically costs ₹4,500–₹38,000. EGR cleaning ₹4.5k–8k; EGR valve replacement ₹14k–28k; cooler replacement ₹22k–38k. We always diagnose first and give a fixed quote before any work begins.

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