1993 /2.2 /Berretta only runs bad when raining ???

I bought a used vehicle within the past month and noticed that anytime it rains or is humid outside the car starts fine ,runs ok after a minute or 2 or when i switch to reverse or drive ,the Idle goes up and drops to about 100 rpm with the car almost about to quit unless i drive it for about 5 min /gets warmed up it runs great .I asked a service tech and said it may be an Ignition module and its a pain to fix ,does anybody have any other suggestions ....I have all new plugs and bosch wires on it so it isnt that ?...out of ideas

thanks

could be ignition coil.

could be ignition coil.


Would you have any idea where that is located ?.

thanks