what does code po400 critical malfunction mean on a vauxhall zafira diesel 51 plate?

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See this link:

http://www.bba-reman.com/forums/Topic27827-1-1.aspx

2007-03-02 23:17:00 · answer #1 · answered by Polo 7 · 0⤊ 0⤋

P0400 : Exhaust Gas Recirculation Flow Error

Could just be a clogged up EGR valve.

2007-03-03 13:30:27 · answer #2 · answered by Bandit600 5 · 0⤊ 0⤋

Have a look at posting 4 on this website (link below)

http://www.cavweb-forums.co.uk/showthread.php?t=55668

2007-03-03 07:16:06 · answer #3 · answered by ragingmk 6 · 0⤊ 0⤋

get out and push!lol!

2007-03-03 07:13:15 · answer #4 · answered by ginger 6 · 0⤊ 0⤋