Each TCU has the ability to wire 2 push button switches for Tiptronic functions. When the Map is set to operate in Tiptronic mode, these buttons will give the driver the option to shift the transmission manually to his command. On the Ver 3.3A firmware their function can be changed […]
Oil Temperature Sensor
The Orion TCU can sense the transmission oil temperature and make line pressure adjustments accordingly. This will ensure the shifting is smooth even if the transmission is still cold. The sensor is situated inside the transmission and the pins is connected to the main connector. The sensor is mostly a […]
Map Selection Switch
The TCU can save up to 4 different tuning maps with a Map selection switch. This switch can be calibrated in the software. It is also a digital switch that is converted to analog signal with resistors. Note that Orion has a 1 K pull-up resistor built into the OT01-P1 […]
Shifter Sensors
The Shifter sensor or Range Switch is important for the TCU to select the correct shift pattern for each shifter position. This is a requirement of the transmission. It will indicate to the TCU which gear may not be exceeded. For example, if the shifter is in position 2, the […]
TCU Power Relay Wiring
The TCU controls the power to the solenoids via the power relay circuit. This relay also acts as a safety cutout in case of engine stalls. When there is a RPM or Speed signal, the TCU will switch the relay output on. In case of an accident this relay will […]
Injector Trim
This feature allows the tuner to trim each injector individually for the ultimate performance. This is done by individual Lambda or EGT sensor on the exhaust runner to measure individual air fuel ratios. It is only selected Mercury2 firmware that has this feature. Trim Count This is the number of […]
Fuel Calculation
This block will allow the tuner to choose different options to set up timing for this engine. Each of these methods will be discussed in detail under the tuning chapter further in the manual. You can see the Tuning section for detailed description on the tuning side. Graph MAP This […]
Injection Type
This setting will allow different methods of fuel injection. The firmware in the ECU will blank out the methods that are not adjustable. In some firmware a refresh will be forced to reshuffle GP outputs or cancel an illegal setting. Batch Injection This method all the injectors are pulse at […]
Status Bar Display
This block at the bottom of the software displays all kinds of status, information and fault codes. Below is a description on types of messages. When no device is connected, the connection button may be open and an indication that no device is recognized. If you use a different USB […]
Selection Refreshed
This feature is initiated by the firmware to force the software to refresh its database. It happens when the tuner makes selections that are not legal for that specific firmware or when GP outputs are re-arranged by the features. The software will refresh and change the setting of the tuner […]