1994 Honda Passport Sputters in the AM
Most recently, when the weather has turned colder in the morning along with some dampness, my car, when started, vibrates hard initially then evens out, but it sounds like the engine has not fully warmed and although it is like a sputter, it has hesitation and is difficult to accelerate until it has gone a few miles under 30, then it is fine for the rest of the day. On one warm day, it was fine, another day it started the hesitattion/sputter again.
Do I need a tune up? Plugs?