Was finally able to setup my carloop with particle photon.
First carloop was defective and had to replace. Now the replacement is working.
Hello world LED blinking works
VIN Reader works
Followed all of the instructions here: https://www.carloop.io/apps/app-socketcan/
Problem comes when running candump can0
On my 2018 Nissan, 64 lines of output come right when turning on the ignition, then nothing else. All of the IDs are 71D 72D 71F 72F.
On my 2012 Nissan, constant output is received as expected.
Per this website (at the bottom https://harrisonsand.com/can-on-the-raspberry-pi/) it looks like there could be a gateway / firewall in my vehicle preventing code output?