There are states which do not do an actual emissions 'sniffer and/or dyno' test, but they WILL still fail you on the OBD 2 plug-in that they still do, so you will fail due to monitor readiness not showing correctly (yes,
unless your state does not even do a plug-in test).
This is
why I was asking IF it is even possible to 'write out' the whole EVAP system from the ECM, and somehow 'write in' a readiness monitor showing 'positive'.
Peterson is in Joyzee, and the last time I went through their (Parsons run) inspection some 6 years ago, they DID do the OBD 2 plug-in, and they also still did the gas cap 'leakdown' test, which leads me to think that they DO care about the whole EVAP system.