Did you figure this out yet? By "picking up" do you mean the relay is turning on? Here's a couple of things to check:
Measure the voltage on the terminals in the relay socket. Two of them must have 12 volts. If they do, use a piece of wire or stretched out paper clip to jump terminals 30 to 87. If the pump runs and develops pressure, you'll know it's okay.
Next, put the relay back in the socket and carefully slide a jumper wire in alongside the terminal in the lower left of the drawing. (Sorry, I can't read the terminal number). There is also a test connector that you can ground if you can find it. If you can't find that connector, use the diagram below and use terminal 86, but verify first that there is no voltage on it before you pop the relay back in.
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Wednesday, April 13th, 2011 AT 4:03 AM