question need help badly

[nickc280]

OK his has been going on and I'm sure you might have read my previous post, I washed my engine, BIG MISTAKE and ended up getting water into my #5,6 spark plugs, so this is were I made another mistake I looked at the plugs and only looked at 1-5 because the set screw for the 6 coil had already been stipped (I didn't know you didn't need to take them out at this point) so I only found the water in #5 at this point put everything back together and it still jerked at stops and only stops, so I still was forced to drive it to school and back for a couple more days, so today I found out you can just pull the coil up and it slips right off that stupid set screw, OK so I pull #6 out and yes there is water in there so I'm stoked I think I 100% found the problem so at this point I got brand new pugs at the dealer to through in and dry the water good, no none went into the motor, and put new plugs in and go, it runs perfect at first for like a minute I stop and the jerk is there and even stronger I think, so know I know there is no water in there and new plugs are in and it is worse than before, so I go home put the old pugs in (6month old) and try again, starts off perfect for minute or longer then pull to a stop and same old jerking like at the first. so I come home and think OK maybe the computer is set for the water plugs LOL and know doesn't know what to do with things normal again???? so i unplugged the battery and this is where I'm out right this second, Please give input, I know this was very dumb to spray my motor so I don't need much of that unless good info follows

What model do you have? Depending on which one there are a number of things that could get wet and cause problems: distributor cap if you have one, the coil wire or coil itself, the entry holes for the plug wires into the cap, etc.

It sounds like wet spark plugs were only part of your problem. Without knowing what you have, in general what has to be done is open the various ignition components one by one and look for moisture signs, then dry them. Your auto parts store will have a spray that's used to dry moisture. Alternately you COULD take a hair dryer and blow it on the outside of each ignition component awhile, kind of hit or miss but better than nothing.

[nickc280]

can't believe I forgot the model it is 1996 C280
Thanks

[r_p_ryan]

Do you have a multi-meter that reads duty cycles?

[nickc280]

I think my battery reset idea did the trick, I drove it all around town with no problems what so ever

[bwheitman]

Just so you know, those inline engines with plugs right down the middle are notorious for going into limp mode if they get wet. If the computer senses any kind of arcing (because of water or anything) it shuts it down to about half the cylinders. Whenever I wash my engine I always keep the cover in place and try not to ever get any amount of water on the top of the engine.
After it dries out you can disconnect the negative terminal and re-connect to turn off your CEL light.