GMLAN not CAN? 2002 GMC C1500

[mylittlepwnies]

So Ive been reading around, trying to figure out how to send my own data with my own sensors across the CAN, but apparently my 2002 Sierra 1500 SLT 5.3 2WD uses the GMLAN?
does anyone have some resources other than the GMLAN Bible. Im looking for unused IDs that the ECU will ignore when data is going. Ive got a dozen or so of my own sensors that id like to be abl to pull up in Torque Pro rather than my current setup of a 5" touch TFT in a cellphone holder. I was able to send sensor data using an arduino simulating an ECU and am MCP2515 with a cheap elm 327 and toque pro

[CamGTP]

I know of no way to wire in your sensors to the computer and have them be output through the OBD2 so you can log them. The P01 computers don't have much support like that and they barely have enough space in the computer for 2 bar and 3 bar OS upgrades when using HP Tuners.

 

Guys with HP Tuners that want to log say a fuel pressure sensor or a wideband oxygen sensor have to use existing 5v circuits like the fuel tank pressure sensor and or the EGR circuit to log those sensors. Then you have to create a custom math parameter within the scanner to convert the 5v data into units that the added sensor uses. There is also the serial data connector that HP Tuners has that you could use one of those sensors with but you are limited to only 1 sensor.

 

So in my eyes you can't do what you want to do if you are planning do through the OBD2 port.