Fuel Module Output Testing

One question that often arises is how to monitor pump output. This is good to know in order to determine if the pump is
adequate for the power produced. To test this, connect one voltmeter to the inputs of the VaporWorx controller (BAT+ and
BAT-) and the other to the output (PUMP+ and BAT-). These connections must be made on the controller terminals. In a
safe and legal way, have an assistant watch the meters as the car is driven at wide open throttle/maximum fuel demand.
Once the output of the controller is 0.2volts less than the input, the controller is effectively sending maximum power to the
pump(s). After this point is reached fuel pressure will begin to fall due to a pump over-capacity condition.