[ChuckS]

Some suggestions...
Blower runs but are you hearing the DSI sparking when listening outside at the furnace exhaust?

After 3 failed attempts furnace will go into lockout mode...to clear turn thermostat completely off and back on to reset lockout

If you run the stove long enough it should have purged any air to furnace line

2 items that will prevent furnace light off are .... sail switch sticking and not making continuity or the furnace control module itself has failed.

If you have a multi meter skill set you can TS yourself to determine what’s at fault.

Access to what you need to get at will be thru basement of drivers side..have to remove rear cargo bay panel to get to furnace.