Methanol / Water Injection Controller Basics
HPC Methanol controllers are available for different MAP sensor ranges, a universal voltage input or duty
cycle input from high- injectors. Vehicle MAP sensors on turbocharged or supercharged vehicles are
typically 2.0, 2.5, 3.0, 4.0 or 5.0 bar. This is a measurement of the range of vacuum and boost the map
sensor can read. Determine which your vehicle has prior to ordering. The voltage based controller may be
installed on a MAF, TPS, or other 0-5 volt sensor (not for PWM based MAFs). The duty cycle model is
intended for high impedance injector systems. Customized voltage ranges are available for 0-5 volt sensor
The controller has two knobs and two indicator lamps on the front panel.
ST RT This is the boost pressure/voltage/IDC that the pump will begin to
turn on at. This will be between 2psi/2V/10% and the maximum
your sensor or input will read.
END This is the boost pressure/voltage/IDC at which the pump will be
running at 100%. If END is set higher than START, the pump
output will be ramped up as the input increases, until it passes
the END setting, at which time it will be 100%.
If desired, END may be set below START. In this scenario, once the
boost pressure/voltage reaches the START setting, the pump will
run at 100% and not vary the rate of flow – acting like an on/off
switch.
POWER This green lamp illuminates solid when the controller is powered
on and no failures are detected.
The green lamp flashes at one flash per second if the sensor input
wire shows less than 0.10 volts for MAP or other sensor inputs, or
shows no activity for injector duty cycle models.
The green lamp flashes at five flashes per second if the controller
detects that the pump wire is disconnected or short circuited. The
controller cannot detect an open or short circuit until it has
reached the start setting and has attempted to power up the
pump.
If an error is detected, the controller will continue to flash the
POWER lamp for three seconds to make errors easier to spot.
CTIVE This blue lamp illuminates only when the pump is powered. It will
flicker quickly when the pump is at a lower output, and will
increase in intensity until it stays illuminated fully at which time
the pump is running at full power.
A red lamp will illuminate only if the pump output wire is short
circuited or is drawing excessive current and the controller has
stopped the output to the pump.
Kit Contents
1 HPC Methanol Injection
Controller
1 Main Power and Pump Wiring
Harness with Fuse Holder
1 Sensor Tap Wiring Harness
1.5” Hook and Loop Tape 1 Packet of Wiring Terminals 1 Rocker Switch
