MustangForums.com - P0401 code...don't read

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shanec

Apr 12, 2010 07:57 AM

P0401 code...don't read

Just throwing this out there for the archives.

Stupid me. If you leave your TPS sensor disconnected and try to start the car, you get a P0401 code (EGR flow insufficient).

mustangmike_50

Apr 12, 2010 08:19 AM

typically the p0401 code is caused from a dpfe sensor or an egr valve.
glad to see you found that tps sensor will cause this code too.

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