Here is the million dollar question...Having some misfires at idle up to about 2500 rpms. Car has new NGK tr6's gapped 2 .038, new taylor ovc plug wires, new msd blaster coil, and I run the MSD 6al (Car has mids in the sig). The car has the original opti on it...42,000 miles. Car isnt driven that often, and went to crank it the other day after sitting for about 3 weeks, and had the misfires...checked all the wires, and they are fine. Fuel pressure is fine... What else could it be? I still have egr??It has been very humid here as of late, and noticed condensation on the garage doors the other week. Do you think condensation has fried my opti? What is the classic opti going bad signs?

 

mist your engine bay with water at night and see if you have any wires arcing.... I had a similar problem before and the spark was arcing from one wire to a ground