360 running rough/missing

I had my car in the garage for a few days with the hood/trunk open and the battery switch turned off (so the battery wouldn't die) and now When I start it it seems to have a miss/sputter. Almost sounds like a bad coil but it was fine when I put it away last week. I have read on here that the ECU have to re-learn their program after having the battery turned off, I did drive the car localy yesterday but it is running badly. While taking off from a stop light it will sputter then clear up as the rpm's climb. When I shift gears it will sputter again then clear up again. Any help will be greatly appreciated.

 

Should I turn it off again and start from the beginning? or is it ok just to start it and let it idle for the 10 min. Thanks for the quick replys

 

OK I just let it idle for aprox 15 min. and I still hear/feel a miss. I didn't drive it as it is raining here today. I'm open to any ideas. Thanks again

 

OK. I shut the main switch for about 15 min. then turned it back on I then put the key to the on position for about 45 sec. then started the car and let it idle for about 10 min. It still has a miss......My next step will be putting in some dry gas, Maybe some condensation has built up in the fuel system. If that doesn't work I will pull and replace the spark plugs and inspect the coils. Does anyone have a way to test each coil? Thanks again

 

2003 360 spider F1
24,xxx miles
No check engine light now or ever, When I turn the key it says "check ok" I dont have the service history on the car. I am planning on a 30k service in the near future.

 

O.K. I let it sit for two days with the switch off, Today I turned the switch on and did exactly as described above....same thing. I went a step further and pulled the coils to see if I had water or any visible damage to any. One coil had some condensation on the inside so I blew it out with air but still no luck. While the car was running I put my hand on the coil "I'm not sure if that is a good idea or not" all felt smooth except the one that had the condensation. So I switched it out with another coil to see if the miss would follow and the same cyl felt a slight miss, Now this cyl has a coil from another cyl. The car still has a miss. I didn't pull the plugs yet. I will just order a new set of plugs and then change them out unless anyone has another idea.

 

Update, The tapping I was feeling from the one clyinder was caused by a loose sparkplug. All my coils test OK. I drove the car yesterday and it still has a sputter only on take off. crusing on the highway it feels and sounds good. One other thing I discovered while working on this one time while trying to start the car the battery seemed weak. I tried again and it started, So last night I put a battery tender on it and today it still doesn't show that the battery is at 100%. I will be replacing my battery, Then I will see if the car will respond differently.

 

Update,
Battery was new and tested good. Alternator charging 13.7 at idle so thats ok. I found the reason I'm NOT getting a CEL....NO BULB. I will bring home my scanner tonight and see if any code are stored in the ecm. I let you guys know what I find out in the AM. Thanks for all the responces. I think I'm on the correct track by saying its a bad plug, We will see.

 

OK, Hooked up my scanner and sure enough. Generic missfire cylinder 2. At least now I know where to look. Now save me some time and let me know which cyl is number 2. Thanks

 

Changed out the plugs and I still have a miss, Now this time I get no codes for a missfire just a code for evap P0453. I just took it for a 50+ mile run and still no missfire code but it does not snap when i hit the throttle. Any ideas?