egr troubleshoot help
Thread Starter
|
Junior User
Joined: Jan 2009
Posts: 97
Likes: 0
From: Liberty, Utah
egr troubleshoot help
hey guys I have had my 01 f150 4.6 for about 6 months now. Has always run a little rough but just barely noticeable. The last month or so my cel has been on and getting a p0401\p0302 code for egr insufficent flow and cyl 2 misfire. I know it is firing on 2 because I have replaced all coils and plugs since I bought it. My main question is should I look at dpfe sensor or vaccum solenoid or since the 401 code has the 302 along with it should I look towards pulling the manifold and plenum to clean blocked passages?
Fleet Mechanic
Joined: Aug 2008
Posts: 1,446
Likes: 9
From: NE Iowa JD Country
hey guys I have had my 01 f150 4.6 for about 6 months now. Has always run a little rough but just barely noticeable. The last month or so my cel has been on and getting a p0401\p0302 code for egr insufficent flow and cyl 2 misfire. I know it is firing on 2 because I have replaced all coils and plugs since I bought it. My main question is should I look at dpfe sensor or vaccum solenoid or since the 401 code has the 302 along with it should I look towards pulling the manifold and plenum to clean blocked passages?
with TBH removed then one can remove the Idle Air Control (IAC)
and clean it as well. the 2 previous things to do are considered just good maintenance and may not address the 401 code
the 302 hints that there is issue with the #2 cyl coil and or plug or the connection to the coil.
look the vacuum lines over carefully that are associated withe EGR sytem
Thread
Thread Starter
Forum
Replies
Last Post
