Thread: WUR problems
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Hot Euro Hot Euro is offline
Old car guy.....
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Join Date: Mar 2014
Location: Lubbock, Texas
Posts: 599
Originally Posted by RarlyL8 View Post
If the control pressure is 5.7bar cold/warm the engine will not start or run, it would be off the charts lean.
Your WUR looks long in the tooth. Someone made the cold pressure plug adjustable in the past and now the bolt/nut is missing. We can rebuild it but I would still want accurate pressure readings before doing so. Verify your gage valve is not stuck in the closed position.
What are the Bosch part numbers of the fuel head and WUR?
WUR #0436140054
FD #0438120024
Took it apart, blew out connections, now system is about the same at 5.6 with valve closed. the cold reading has dropped to 4.7 bar with valve open picks up to 4.9 hot and holds about 1.5 when turned off.

Last edited by Hot Euro; 07-03-2014 at 08:19 AM.. Reason: redo
Old 07-03-2014, 07:21 AM
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