Faults and Remedies The Orion yellow power LED does not come on The ignition wire does not have 12Volt There is a short on the 5 Volt output from the TCU. – The magnetic crank or speed sensor, or the TPS sensor all use 5 Volt. (Check the wiring.) Check […]
Error Codes
The ECU software has Error, Warning and Information codes displayed in the Status tool bar at the bottom. These codes will help the tuner to find problems during startup and tuning, also to see if the ECU is functioning correctly. Some of the functions on the ECU will indicate to […]
Power Relay Wiring
The ECU controls the power to all the hardware via the power relay circuit. These relays also act as a safety cutout for the fuel pump in case of engine stalls. When you switch the ignition on, the ECU will switch the relay output on for 3 seconds. If the […]
Jumper Settings
The Spitronics ECU’s are universal products that cater for all kinds of sensors and features. Therefore, it has Jumpers that is switched which will expand the universality of these products. Most jumper settings are around the crank and cam angle sensors to select between hall or magnetic sensors. Orion has […]
Connecting the ECU for the first time
Now you can proceed with the following steps. If any steps do not correlate with the ECU operation, stop and look for the faults. Ensure that the ECU is earthed!!! Remove all the fuses. If it is an easy install harness with a common fuse on the main lead then […]
Preperation
Before connecting the ECU check the following: Install new spark plugs on engines that was standing for a long time. Service and test the injectors to ensure they all have the same fuel delivery and that the filters on them are clean. First ensure that the installation is correct according […]
ECU Troubleshooting
The ECU yellow LED does not come on The ignition wire does not have 12Volt There is a short on the 5 Volt output from the ECU. The magnetic crank or distributor sensor, TPS and MAP sensor all use this 5 volt. Check the wiring. The Software does not connect […]
Harness Layout
The harness layout for Orion has many options to make routine installations more neat. This manual is based on the most complete harness for explanation purposes. Some harness may not contain all the wires so make sure on your harness’ part number. ECU and TCU are featured here due to […]
Handshake ECU with TCU
The Orion ECU can be interfaced with Orion TCU to make wiring less complex. Sensors like TPS could be shared. The TCU also requires an RPM signal and it is connected to the RPM output of the ECU. This is calibrated in the ECU and TCU. The TCU can indicate […]
Orion Layout
PWR LED – 5 Volt Power on INFO LED – Information Coms – Communication Connecter 6 Way – USB Cable & Programmer P1 – Input Connector 12 Way P4 – Serial Link Connector 4 Way P3 – Positive Output Connector 8 Way P2 – Ground Output Connector 4 Way Mounting […]