Hello there. I have a 22 Camaro ZL1 and wanted to collect some track day data beyond standard OBD2, such as brake pedal position, etc. Fortunately, RaceChrono works with OBDLink MX+ to get CAN-Bus data. However, I couldn't find available information online on which CAN ID I should use for my car, so I did a little bit work to find some of it and I'd like to share.
Acc pedal ID 190 Equation: bytesToUInt(raw, 2, 1) * 0.392517
Brake ID: 508 Equation: bytesToUInt(raw, 4, 2) * 0.0133
Coolant Temp ID: 1217 Equation: bytesToUInt(raw, 2, 1) - 40
Engine RPM ID: 201 Equation: bytesToUInt(raw, 1, 2) * 0.25
Steering ID: 485 Equation: bytesToInt(raw, 1, 2) * 0.625 (This ID also includes steering angle rate but I couldn't really figure out the equation)
Potentially these may also work with other GM vehicles, since apart from brake ID, I got the rest from Cadillac CT6 opendbc repo: https://github.com/commaai/opendbc/blob/master/opendbc/dbc/cadillac_ct6_powertrain.dbc
I'm still trying to figure out the IDs for steering wheel angle and transmission gear. If I could find it will share it here.
