I got my g less then a year ago. and it has been great. but i started notching a problem not that winter is setting in. if i hit a puddle or the front end gets to wet, i get a misfire problem. i would have to say at least 2 maybe even 3 cylinders are missing. i lose a lot of power, and the car sounds, just plain bad. if i keep it going and it manages to dry up, the problem goes away, until i get it wet somehow. any advice would be welcome. i bought the car with all the mods and, working on finding everything they messed up (its a lot..). but this problem i have no idea even where to start to look.

i checked my air filter for my cold air intake and its always dry, and i'm getting no codes at all other then the O2 sensors witch i know are bad, (a few wires detached,) for over voltage and heater circuit. any places to check and things to do that you guys can give would be great. d
thanks in advance.

 

Try to spray water from spray bottle (not from bucket!) at different areas under the hood with engine running and see where it causes misfire. I do not think that water splashes can reach top of the engine such as coilpacks, but alternator sits quite low. There're couple of plugs under the car going to oxygen sensors, try to spray them as well. You are saying that you have O2 sensor codes, water may make the problem worse.
From your pic it looks like you do not have engine bay undertray-is that correct? I strongly suggest that you have it fixed.
Good luck!

 

I'd start by checking any engine grounds or wiring that would possibly get wet on the front of the car.

 

See if the splash shield/engine undercover is still in place. If you soak the crank sensor that might do it and it's on the bottom of the engine.

 

Sadly due to the law not agreeing with how I drive, the car is going to be off the road for a while till i work out licence woes. I'll try your advices wile I'm working on it and take care of problems thanks agine