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Install the FP50 away from excessive heat (ie exhaust manifold) and moisture
WIRING CONNECTIONS
The FP50 is supplied with two looms. Each loom snaps into the connector on the side of the
processor box. The first loom has the CV30/CE30 stepper valve connected to it
(do not plug in
the stepper valve until the tuning procedure is complete)
and the second loom is connected to
the various vehicle sensors.
Important Note: Fully unscrew and remove the adjusting cap from the CV30/CE30 stepper
valve. Using your fingers, gently open the slotted barrel assembly until the valve is fully
open (it rotates 90 degrees between the stops). Screw on the adjusting cap a full 2 turns
and lightly lock into place with the locking ring. The valve should be fully open before
installing it.
The CV30/CE30 stepper valve should now be installed in the vapour line between the convertor
and the gas mixer. A separate manual high speed adjuster (power valve) is not required to be
installed in the vapour line.
For performance reasons, the vapour line should be kept as short as possible. The FP50 and
associated CV30/CE30 valve are high performance components and are designed for 19mm
vapour hose. Do not install the CV30/CE30 near large amounts of radiated heat. Do not install the
stepper valve near the exhaust manifold.
Do not connect the stepper motor loom
until advised
to do so in the section “ADJUSTMENTS & TUNING THE GASTEC FP50 FUEL PROCESSOR”
The second (vehicle) loom containing five wires is connected as follows;
Red wire
Locate a su12 volt source to drive all the gas conversion electrics from the vehicle’s ignition
switch. The power supplying the gas/petrol switch should come from a "clean" power source
never
from the positive side of the vehicle’s high tension coil
and
never from the vehicle’s fuel
pump
. Fuel pump brushes and commutators wear over time (which can lead to unstable voltages
being fed to the fuel processor). The 12 volt source must be able to safely supply 10
amps and must have a 10 amp fuse inserted to protect the vehicle’s electrical system from any
overloads. The fused wire should be connected to the central terminal on the petrol/gas
changeover switch. The FP50’s red +12 volt wire should then be connected the gas terminal of the
gas/petrol changeover switch (so that it only receives power when the driver wishes to run the
vehicle on gas - see wiring diagram).
Black wire
This should be connected to the negative side of the
vehicle’s battery. Sometimes it can be
connected to the vehicle’s OEM computer earth or to the engine earth
, but should any
unstable or unusual fuel processor operations be observed, please relocate to the vehicle’s
negative battery terminal. The
vehicle chassis must not be used
as the FP50 must be
referenced to the oxygen sensor correctly. Do not earth this wire close to electrical noise
generators such as high tension wires or alternators.
Green wire
This should be connected to the
throttle position sensor (TPS).
This sensor is normally found
near the throttle butterfly on the engine.
On vehicles that operate “Drive by Wire” (where a
stepper motor is used to move the throttle butterfly), the TPS sensor adjacent to the
driver’s accelerator pedal should be used and not the sensor alongside the throttle
butterfly stepper motor (otherwise engine management lights, engine surging or failure to
Содержание FP50 Series
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