[914efi]

Here's a ghetto test: Unhook heater wire from WUR and remove it from the engine so heat does not get to it, maybe wrap in a rag so it does not bounce around, fuel lines need to stay connected. If it is closing too tight and raising control pressure this will reduce or eliminate that from happening and the car will run different, maybe better but certainly different. This would at least tell you whether it is functioning even if improperly. Gauges will be needed to really know what is going on. Obviuosly do this carefully and only for the test.

If the car does not change, then the wur is not the major cause.