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JBL930 JBL930 is offline
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Join Date: May 2006
Location: UK
Posts: 1,172
The feed for the WUR is probably the same as the fuel pumps. Reach behind the fuel head and disconnect the cable there, with the ignition on (engine not running) the fuel pumps will then run, my bet would be that you will also get power to the WUR, not certain about that though, so check with a wiring diagram. You could run a separate source to the WUR just to see if the WUR works and sorts your problem.
Make sure you reconnect the cable to the fuel head though, it's a safety device, if you crash with the ignition on and the engine cuts, but you've ruptured a fuel line, the pumps will still fire fuel everywhere.

A good test for your AAV is to remove it and put it in the fridge, leave it for a while and observe the position. Then put it in the oven on a low heat for a while, then again observe the position... Simple check like you would with a thermostat
87 930, 993 turbo engine, RS Tuning 520PS/515lbf-ft, Arrow Rods, ARP hardware, Solid lifters, G50-50, RS Flywheel, 890nm Sachs clutch, RSR coil overs all round, 993 C4 calipers front, 930 fronts on the rear, Ruf Speedlines.....
Old 540 BMW, XB12S Modified, for being a total hooligan
Old 02-23-2010, 12:49 PM
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