1999 Isuzu Rodeo Question code P0401

Tiny
PHOENIX0078
  • MEMBER
  • 1999 ISUZU RODEO
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 151,456 MILES
Ihave replaced the EGR valve and continue to get a Code P0401
Wednesday, October 27th, 2010 AT 5:52 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi Phoenix0078, Welcome to 2carpros and TY for the donation

A code P0401 most likely means one or more of the following has happened

There is a blockage in the EGR (tube), most likely carbon buildup
The EGR valve is faulty
The EGR valve may not be opening due to a lack of vaccuum
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Wednesday, October 27th, 2010 AT 7:04 PM

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