Depending on the number of plugs the OEM ECU removed from the vehicle has, jumpers need to be configured as:
·If the OEM ECU that was removed from the vehicle had three loom connectors, set the jumpers to the "OEM 3 Plug" positions.
·If the OEM ECU that was removed from the vehicle had four loom connectors, set the jumpers to the "OEM 4 Plug" positions.
