HESITATION IN RAINY & DAMP WEATHER. on 1994 Chevrolet Cavalier

IN RAINY & DAMP WEATHER CAR STUMBLES OR HAS HESITATION.
PLUG WIRES, EGR VALVE, & SPARKS PLUGS REPLACED LAST YEAR.
MECHANIC SAYS TO REPLACE PLUG WIRES.COULD THIS BE A RESISTANCE PROBLEM WITH COIL OR WIRES..

1 answer
It could be a bad wire even though they are new or a small crack in the coil. Normally with this problem moisture is getting into the secondary ignition