Had a decent rain overnight (car was parked). Start driving this morning and get to the stop light, start out and it sputters and doesnt go. Let off goes a bit put it down a bit more and goes to idle with the pedal down. Get up to speed slowly while it still sputters and eventually runs normal.

My guess is the humidity causes water on the MAF and it doesnt read correctly. and eventually dries off.

Ill get the vid i took soon.

 

the first thing i would do is consult your tuner.

 

In the process of doing that. This happened once before but i wasnt tuned then. Same scenario - decent rain, overnight parked.

 

did you have your intake then? Might be a dirty MAF or a dirty throttle plate. The throttle plate tends to stick when it gets gunked up.

 

Yes i did. I had stock 2.2 TB then and now i have the LSJ

Might pull the MAF and see

 

Do u have a hydroshield when this happened to me my filter was soaked and i cleaned my maf and went away

 

No hydroshield. It was parked the whole time it was rained on

 

Same here and it still happened

 

Grab some MAF cleaner from the parts store and clean it. Sounds like condensation build up.