The air temperature sensor is used by the ECU to correct air density changes due to air temperature variation. This input can also be used for general purpose output controls like Intercooler fans or water spray pumps. Operation The resistance of the temperature sensor changes in relation to the temperature […]
Water Temperature Sensors
The water temperature sensor is mostly used by the ECU for cold-start and run enrichment, engine over temperature limit and thermostatic radiator fan control. They come in different shapes and resistance values. Operation The resistance of the temperature sensor changes in relation to the temperature it senses. It has a […]
Comms Sensor Inputs
P5-Comms Input connector contains wiring of the following sensors and output. Tuning Potentiometer (POT) Dual Map Switch UART Comms Sensor Input Drawing
P1 Sensor Inputs
P1 Input connector contains wiring of the following Sensors. Map Sensor TPS Sensor Water Temperature Sensor (Sensor included) Air Temperature Sensor (Sensor included) Lambda Sensor E22 P1 Sensor Input Drawing
GP Priority Layout
The Orion is a universal controller that can have many variations of wiring. This manual is a modular drawing manual where you have to decide on wiring and print different section of drawings. The GP Priority sheet will explain where each Input or output is, and for convenience the wire […]
Tuning
The TCU normally comes with standard gear profiles loaded. These profiles are just startup profiles to test the unit. Transmission setup differs too much to make standard maps for it due to the many variables like engine power specifications, final drive ratios, wheel sizes, fuel type and application requirements. In […]
Power Connection
When an ECU does not have proper connections to Power or Earth it will generate spikes and erratic behavior. The starter and alternator needs to be wired correctly. Earth straps can cause interference and is usually a problem during cranking. The starter draw around 60 amp during cranking. Its current […]
Startup Procedure
The Startup procedure is a very important procedure, as to prevent damages to the TCU and Transmission. If at any time the clutches slip, back- off on the throttle immediately! Increase the line pressure and/or check if the fluid levels are correct. Do not continue if problem persists as the clutches are very delicate […]
MAP Lock Feature
Locking a device means entering a 6-digit password into the device. It will then require that password to unlock it and retrieve the tuning information. There is no master password so ensure you save a copy of that MAP or password for future reference in case of a device fail […]
Toolbar
Toolbar Shortcut Buttons guide you to basic operations. Some of them also have Hot-keys that activate or deactivate them with one key stroke. Green background means activated. Hide button – H This button is used to show all lines on a graph or hide the ones that is not selected. […]