2013 Mitsubishi P0401: What It Means & Is It Safe to Drive?
P0401 on the 2013 Mitsubishi: Exhaust Gas Recirculation Flow Insufficient. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
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What this code means
The EGR system is not flowing enough exhaust gas. Usually due to carbon buildup or a stuck valve.
Common causes on the 2013 Mitsubishi
- Carbon-clogged EGR valve or passages
- Faulty EGR valve
- Faulty EGR position or differential pressure sensor
Symptoms
- Check Engine Light
- Rough idle, hesitation
- Knock under acceleration
Typical fixes
- Clean or replace EGR valve
- Clean EGR passages in intake
- Replace EGR sensor if applicable
Repair cost range
For a 2013 Mitsubishi, repairs for P0401 typically fall between $150 and $600, depending on the root cause and labor rates in your area.
Known issues on Mitsubishi
Mitsubishi V6 P0401 EGR flow insufficient is common on the 6G75 and 3.0L 6G72. The EGR valve deposits carbon over time and the passages in the intake manifold block. Cleaning the EGR valve and intake ports resolves most cases without parts replacement.
Most commonly affected models
Endeavor 3.8L 6G75 2004–2011Galant V6 3.0L 2004–2009Outlander V6 3.0L 2004–2006