Question

I have a 1999 Ford F350 with engine code P0401, what is the meaning of the code?

Answer 1

Hi there

This code is for insufficient EGR flow. Generally, this code is the result of a blocked EGR tube but can be a bad EGR valve or EGR solenoid.

P0401 FORD - Exhaust Gas Recirculation Flow Insufficient Detected

Read more: https://www.autocodes.com/p0401_ford.html