Fuel pump does not have adequate pressure:

a. Turn the fuel pressure adjustment screw inside the hole on the side of the controller. A small eyeglass screwdriver
can be used, as well as the tool supplied in the kit.
b. Remove the power wiring from the brass terminals on the top of the controller. Confirm that the lower brass nuts
are tight.
c. Check that the connections from the VaporWorx controller to the fuel module are good.
d. For the CTS-V fuel module, there are four wires entering the plug (Pontiac G8 disregard.) The two outboard wires
should be red, the two middle black. If these are incorrect, remove the terminals/wires from the plug body and reorient. Gen 5 LS3 and ZL1 have BAT + on the far left of the plug body, BAT – is next to BAT +. See Photo 5 for
LS3/ZL1, Photo 5A for CTS-V.
e. Using a heavy gauge jumper wire, connect the BAT+ to the PUMP+ on the VaporWorx controller. If the fuse is
good the pump should run. If the pump is running but little or no fuel pressure exists, then either the fuel module is
internally damage (broken plastics), the fuel pump(s) have been damaged, or there is a massive leak. The most
common cause of fuel pump damage is running the pumps dry. Fuel is the life blood for pumps. If the pump does
not run then there is a problem with the electrical wiring at the module connection.