I have a 2000 Sonoma that will not start when it is rains for a couple of days. It turns over good has fuel and spark. I have had this intermittent problem for several years. It is in the shop now and they cant find problem either. Have replaced coil, ditributor, wires, plugs. Ignition module test good and fuel pressure is above 60 psi. Anyone have ideas. As soon as it drys out it starts and runs great.