1995 ej22 p0400 code

[sikend667]

so the car started throwing a p0400 intermittently. it will stay on for a few days and then mysteriously dissapear for about a day then come back. i have disassembled, cleaned and reassembled the egr also replaced the vacuum valve (circled below) any other suggestions or possible loose wires i should be looking for?
https://sl-i.net/FORUM/images/imported/2013/04/egr_zps4468a67c-1.jpg

[chuckthefuk]

Have you seen this thread?

http://forums.nasioc.com/forums/showthr ... ?t=1453414 (http://forums.nasioc.com/forums/showthread.php?t=1453414)

[sikend667]

Have you seen this thread?

http://forums.nasioc.com/forums/showthr ... ?t=1453414 (http://forums.nasioc.com/forums/showthread.php?t=1453414)
read thru it will replace all the tubing this weekend will post back if that fixes it.