Runs bad when wet....

[Cakes]

My car runs like crap when its raining or wet out. I had it running its best the past few days when it was dry and sunny and we just had a rain storm and it runs bad. Idle is poor, surges while cruising but accelerates fine (maybe a little sluggish but not all that bad). I have no clue what it is but after a few days of dry weather it will run great again. I have the feeling it is electrical but can anyone give me an idea of what it could be or somethingb I coiuld check. Thanks!

 

[86gn]

I think it could be getting your ecm damp from leaks around that area,take it out of the kick pannel and put it in a big zip lock bag and tape it up around the wires next time its going to rain see if it fixes it.Feel for damp spots in the car after a big rain or i would say a bad or loose connection on the coil pack or ing. mod under the hood

The only way to tell is cover 1 part at a time see if it works.
You might try to cover nothing start it get out the garden hose and soak it down insted of waiting on the rain