GReddy Profec - Manual (Page 12)

Chassis Ground
+12V ACC (Accessory) Power
Fuel pressure regulator
Sensor unit
Y connector
Air filter
Controller unit
Power harness
Sensor unit
Pressure sensor hose routing instructions
Power unit wiring instructions
Installation
(1) Find the (12V) ACC (Accessory) wire by
using multi-meter.
(2) Disconnect the ground wire from the
battery, and solder (or use splice connector)
on the ACC wire to the red wire on the power
harness.
(3) Solder (or use an electrical connector) to
connect the black ground wire from Profec
with a chassis ground.
(1) Cut the vacuum hose between intake manifold
and fuel pressure regulator or between throttle and
intake manifold, and connect the Y joint connector
in between them.
(2) Then connect the provided 4Φhose to third
opening on the Y joint connector.
(3) Adjust the length of 4Φhose and install air filter
on the other end.
(4) Install another piece of the 4Φhose from air filter
to the boost pressure sensor nipple on the Sensor
unit
Please make sure that the 4mm hoses are secured with cable ties to prevent them from
disconnecting.
Warning
Important
・For Toyotas JZ engines, Mitsubishis 4G63 engines and engines with fuel pressure controlling
solenoids, make sure to tap the pressure in between intake manifold and fuel pressure
control solenoid. (do not install on the line between the fuel pressure control solenoid and
fuel pressure regulator.)
・Make sure to install air filter.
・Replace air filter if it is very dirty.