# Overview of CAN usage and IDs used by rusEFI Note: We support OBD2 pretty much exclusively for gauges/dashes/apps/etc, not real diagnosis! * rusEFI WBO two way communication 0xEF50000 0x190 * rusEFI WBO bootloader * rusEFI gauge broadcast 0x200 default base see [DBC](https://github.com/rusefi/rusefi/blob/master/firmware/controllers/can/rusEFI_CAN_verbose.dbc) * rusEFI vehicle specific communication * rusEFI ECU bootloader OpenBLT TX 667h, RX 7E1h * rusEFI CAN GPIO * rusEFI [TS over CAN](TS-over-CAN) 0x100 0x102 ## Software [Man-in-the-middle](Man-in-the-middle) ## Hardware options [fake looking like Vasya](https://rusefi.com/forum/viewtopic.php?f=13&t=2243) [custom China](https://rusefi.com/forum/viewtopic.php?f=13&t=2209) [Korlan instructions](https://rusefi.com/forum/viewtopic.php?p=43654#p43654) FW images & legacy PCAN driver see