PR-4
2.Read Before Installing
Pro Tune products are developed with attention to robustness and reliability. However, some care is
required when installing the product
1 –Internal combustion engines are very sensible devices and in case of accidents present lethal risks. It is
very important that all care is taken, such as individual operator protection, fire prevention and fire fighting,
prior checking of fuels and lubricants, as well as the installation, maintenance and operation done only by
qualified people.
2 –Place the wiring harness as far as possible from the ignition circuit.
3 –Avoid installing the ECU in the engine compartment.
4 –Place the product in an accessible location for the USB cable, preferably with the main connector facing
down.
5 –When the wiring is done, keep unused (White) cables intact and connect them ti the negative battery
terminal.
6 –Make sure the intake pressure measurement hose attachment is securely fastened. Poorly fixed or
leaking hoses result in incorrect reading of intake pressure, which can cause serious engine damage.
7 –The intake hose must always be connected between the throttle body and the engine.
8 –If the triple cable named CMP is not used, do not cut it and isolate its wires individually.
9- Always check the wiring diagram of each sensor or actuator before finishing the harness and turning on
the ECU.
10- Pay attention to the safe grounding of the engine block and the vehicle chassis.
11-Pay attention to the sensors ground (Pin L2), with black cable, which should not be connected to the
battery or to the chassis of the vehicle. It is a ground wire for sensors, which must be used exclusively to
connect the negative terminal of the sensors.
12- Use suitable fuses in the power circuit.
13- Use suppressive spark plug cables and resistive type spark plugs.
14- Use shielded USB communication cables.
