Dandy. 11 volts is plenty to energize the relay, but the problem is the Engine Computer isn't turning it on, and that is because it's not getting a signal from a sensor telling it to do so. That missing signal, I suspect, also fires the injectors, so even though the pump is running with the relay bypassed, the engine still isn't getting fuel.
Now I have to admit I'm not familiar enough with your vehicle. Ford started running their fuel pump the same way Chrysler did it for many years, but even Chrysler has changed their system now so the engine can still run when one sensor fails. Typically one sensor determines when to fire a coil and the other one synchronizes the injector timing. On the Chrysler engines, the injectors are fired according to the camshaft position sensor signal. Both your crankshaft position sensor and camshaft position sensor look suspiciously similar to what's was used in the Jeep vehicles but of course that doesn't mean the computer works the same way. Even though the camshaft position sensor is a bolt-in item, rather than throwing parts at it, see if you can borrow a fault code reader from an auto parts store that rents or borrows tools. If there's a fault code stored in the Engine Computer, that will direct you to the circuit with the problem.
Wednesday, July 6th, 2011 AT 9:25 PM