Is anyone running across 05 and newer tacomas backfiring on first startup of the day? Hear of any repairs that have fixed it?

not a expert here
but thinking
the fuel pump will "purge" the pressure after a few hours when sitting after driving.
maybe if not then you have fuel getting in the cylinders?
or a leaky injector?

ok, just something to think about

I thought the same thing, replaced the fuel injectors, still doing it..

ok what all have you tried? any check engine light or soft errors from the ecu?

no codes, thinking of swapping coil packs with another truck to see if one is firing out of time.