2022 Ford P0401: What It Means & Is It Safe to Drive?
P0401 on the 2022 Ford: 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 2022 Ford
- 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 2022 Ford, repairs for P0401 typically fall between $150 and $600, depending on the root cause and labor rates in your area.
Known issues on Ford
Ford's DPFE sensor is the most common P0401 cause on 4.6L and 5.4L 2-valve V8 engines. The plastic DPFE housing cracks and gives false readings. Replace with the updated aluminum-body DPFE sensor and clean the EGR tube before clearing the code.
Most commonly affected models
F-150 4.6L/5.4L 2V 1997–2008Explorer 4.6L 2002–2005Crown Victoria 4.6L 2003–2011