I recently washed/ detailed my engine bay. I covered the alternator and both coil packs with plastic bags not wanting to get them wet. Now it has a misfire when it is under a load from about 2700rpm til about 3300 rpm and then it clears up but it does it trough 3rd 4th and i have read a bunch of forums were guys have had the same problem and it clears up after about 3 days well its been a week. When it first started happening a took the car for about a 60 mile joy ride and it helped it out a lot, it cleared first and second up. I have probably put about 80 miles on it since last week. So do i just need to drive it more and hope it clears up or do i need to do something else if so then what. thanks