PR-8
1.Overview
The PR-8 ECU features two waterproof connectors, one with 48 pins and the other with 23 pins. Their images
can be seen in the figure below.
The first connector uses a letter and number system to identify each pin, with the columns being identified
by letters A to M and lines identified by numbers 1 to 4, while the 23-pin connector uses a number system from 1
to23 to identify each pin. In addition to this alphanumeric label, all Pro Tunes pre-wired harness has cables with
identification printed on its cover.
The PR-8 ECU has an integrated USB port on the top where an A-B USB cable can be plugged into the ECU for
configuration, this USB port can also power the ECU for configuration. In addition, the ECU has CAN communication
used to communicate with various CAN devices.
Pro Tune ECU has several functions, for example, Dual Lambda Control, Dual Boost Control, and others.
Therefore, the factory-enabled functions on the ECU depends if the Full package is chosen at the purchase moment.
If there is an interest in using new functions, the user can contact Pro Tune to purchase only the activation code
needed, not requiring the exchange of the product or the installation of extra modules.
Before proceeding to the electrical installation, it is essential to choose the inputs to which the sensors will
be connected to the ECU. On the inputs equipped with pull-up resistors, it is possible to operate in Temperature
Mode to connect temperature sensors and buttons with ground-based operation.
The fast inputs are suitable for reading signals of sensors that have a high rate of variation, such as throttle
position, pedal position, intake pressure sensor and mass flow sensor. Inputs up to 15 V are suitable for sensors with
signal amplitude greater than 5V. These inputs can be used to, for example, read the trigger status of a 12V switch.
The digital inputs are those that support frequency signals. At these inputs, for example, wheel speed sensors can be
connected.
