1) the car is missing when pulling up a hill some?
-nope only on start-up
2) Does it miss more when wet?
-not really
3) No codes come up or have come up ?
-Just P0300...
4) Have you had it checked with a Scanner like a Snap On type Scanner Not just a normal scanner. I have the normal scanner, but does not detect a lot of the other functions that could be causing you the problems.
-Ummm I had autozone and Advance pull the codes, I believe they have a normal one
5 ) If you changed plug wires, did you put the good ones on the car like the NAPA or just a replacement brand? I had to change mine 3 times as the plug wires even though brand NEW just were JUNK.
-I replaced em with autolites, I just bought a set of A/C delco, gonna replace 'em with those.
6) Not highly recommended, but I have seen others start the car and then spray a light mist of water over the engine to see if they get any missing, but again with so many sensors on a car it is not highly recommended.
-nah, I don't think it matters lol
7) Is the car shifting OK? through all the gears?
-yes very smoothly, smoother than before
8) I had a spare coil pack module which is under the coil packs, I even changed that on mine, but I do not recall the symptoms of the coil pack module effects on a symptom like yours. I would think it would either work or not work. Some say heat can cause the coil pack module to malfunction. I made sure mine was clean and then put some heat sink compound on it.
-I have it tested 15 times at autozone ( 15 times to get the ICM hot ) tested good.
9) When car misses, 99% of the time a code would come up and give you a route to follow to find the issue. What year did you say your car was??
-2006, it's been missing for like 40K miles now...It recently just started throwing a code, which I have to get it inspected this month.
