It is basically been raining hard all day here in LA and tonight coming back from dinner, I drove through extremely heavy rain and standing water on the road. While it was quite a bit of water, I have driven through deeper puddles before in my MCS with no problem....it could not have been more than 5" at most. However, this time after driving through the water, the car almost stalled and it seemed the car went into some sort of "safe mode." The car would not go over 2000rpm and the SEL and EML lights were on. I managed to turn into a parking garage, shut the car off, opened the hood to see if my intake had gotten wet. My intake was completely dry so I don't think any sort of moisture made its way into the engine. I restarted the car and it ran fine, but the SEL light remains...but the EML light is now off. Do you guys just think the light needs to be reset and the code cleared? If i actually caused any damage the car wouldnt have started again, right? I'm worried!!

 

It would seem that some water got into part of your wiring and caused a short of some sort.

Could be. But that is just responding to the immediate symptom. If you have an abraded wiring harness, you will continue to experience the limp mode until you see to the wiring harness issue. It would seem that a trip to the dealer is definitely in order. Also, you might want to rethink your approach to driving through puddles/standing water.