1/1/2023 0 Comments Torque pro custom pid![]() In my notes above, byte B is Speed in KPH. Each Hex byte will always be between 00 and FF, which when converted to Decimal will be 0-255. When you read a PID (let's say, Mode 21, PID 01), it'll return a packet of data in Hex, usually no more than 7 byte pairs (reference these as bytes A through G). Reading undocumented PIDs is supposed to be completely harmless but there's always warnings that it could cause unexpected behavior, blah blah. It also supports alternate ECMs, like the TCM, ABS, SRS, etc. Literally all it does is read the PIDs one by one, and record which ones respond with data. I used the plugin mentioned earlier to find the supported PIDs. I've been poking around the CAN Bus for a while trying to see if I can spot interesting things (a whole other subject), and a lot of diesel truck owners and tuner crowds use the these modes to get specialized sensor readings, so I started searching for what support the Mirage has. I don't really have a place that explains how to use Mode 21. Usually you have to pay crazy amounts of money and enter contracts to get detailed information about what PIDs are available and how to correctly understand them, but it's not exactly rocket science. Mode 21/22/23 are what I suppose you could call OEM-specific PIDs. Normal SAE-standardized PIDs are in Mode 01, every OBDII car supports those. I've recently upgraded to a ScanTool OBDLink LX and their official OBDLink app. Maybe someone else has done this before?Įasiest way is Torque Pro and a Bluetooth OBD dongle. I'll update this more when I figure more out. There's going to be redundant data, but one unique one is that A/C status. Many of them may require a formula to read (see the official Mode 01 PIDs) correctly. Different MYs may return different data or even different PIDs. Like I said, there's 24 total that I found, that's only 2 of them. I did some testing this afternoon and mapped two PIDs: I haven't found ANYTHING online related to the Mirage, but my attempts to match up known PIDs for models like the Lancer or Outlander to the data that comes out of my car turned up nothing. They could be literally anything the ECM can see - A/C compressor status, CVT ratio, buttons being pressed on the steering wheel or dash, door status (open/closed/locked/unlocked), etc. Now, what that data is, I couldn't tell you. I used Torque Pro with the Mitsubishi LT Plugin to scan for any responses, and I found 24 PIDs that return data. It looks like the Mirages have Mode 21 (similar to 22 and 23) enabled. Has anyone ventured into the unknown that is Custom PIDs? I know it's a real popular thing with the Evo crowd with Mode 23. ![]()
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