1999 Ford F-150 EGR CODE P0401

Tiny
WM. COGGESHALL
  • MEMBER
  • 1999 FORD F-150
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 105,000 MILES
CHECK ENGINE LIGHT SHOWS CODE.P0401. JUST BEFORE THE EGR VALVE, IS A (?) PRESSURE SENSOR, WHAT ARE THE ODDS THAT THIS NEEDS REPLACING? THANKS, BEANS
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Sunday, July 6th, 2008 AT 8:25 AM

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Tiny
OBXAUTOMEDIC
  • EXPERT
There is a seperate code for the sensor. Take the EGR Valve off and Clean it.

Code Definition

P0401 Exhaust Gas Recirculation Flow Insufficient Detected.
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Monday, July 7th, 2008 AT 6:43 PM
Tiny
MASTERTECHTIM
  • MEMBER
Also alot of times I find that sensor, dpfe fails alot too if cleaning the egr doesnt work. They have updated the part from the metal one to now a plastic one.
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Monday, July 7th, 2008 AT 6:48 PM

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