[JP Noonan]

Tim's 914 web site (maybe it's called the 914 fans web site now???) has a article on the fuel pump circut.

Basics: There are two fuses on the relay panel in the engine compartment one is for the pump. One of the round relays is for the FI brain one for the pump and the other for the heater fan, if one of the first two is bad the pump won't work, see if the headlights go up and down and use those relays as they must be good. Use a test light on the pump to see if it is getting juice, I had mice (I'm sure the rest of you are sick of hearing about it, but I digress) chew through the ground and +12V causing intermittant problems. Sometimes pumps get jamed with varnish, if it gets power but won't run try removing it and spray PB blaster into the intake (WD-40 is crap IMHO) then after a few minutes wrap a towel around the ports (the gas sprays out in you eyes othwise, BTDT) and hook the pump directly up to the battery in short intervals so as to not overheat the pump. This gives the pump the max amount of power to break free, but do it away from the gas because that much power WILL spark. Also don't do it with a weak battery, weak batteries produce hydrogen (Hindinburg???) gas. If this dosen't work repeat a few times, but most likely the pump is shot.