370Z CAN Bus Proprietary PID's

SonicVQ

The PID is 0x1183. Since the returned value is 0-5, for gears 1-6, this formula should work: A = A +1. Then first should display as 0 + 1 = 1, second gear: 1+1 = 2, etc.

You might need to put the ECM into a diagnostic session (10 C0) for Torque Pro to return results.
Here is a good example of how to setup Torque Pro for a custom PID (VQ37 oil temp)

Oil Temp Gauge w/Torque Pro - Motorvate’s DIY Garage Quick Tip #2



Also, have a look at the free Torque Pro plugin called Torque Scan. This will allow you to scan all modules for the available PIDs and return the raw data for each supported PID.

Note to keep in mind:
Don't confuse CAN IDs (like 0x421) with PIDs (like 0x111F Engine oil Temp).
Any OBD app like Torque Pro, can only use PIDs.

CAN bus IDs are only useful when talking directly on the CAN bus, using CAN bus hardware.
Some ODB apps have a command console or terminal that allow you to manually type commands, but you need to be quick so the ECM doesn't drop out of diagnostic mode.

I use a $14 Arduino Uno (from Amazon, or $3 from Aliexpress) with a $6 CAN bus shield (Aliexpress)