I just got a check engine light today, and the engine oil is good and tranny fluid is good. The car runs and there doesn't seem to be any weird noises. I'm just preparing incase its the O2 extension wire for my DC Sports header. Its the first of two sensors.

I have it wrapped up good with tape but I did go through water about 2 feet deep. I went to school today and drove home without any problems or light, and as I was coming home from the gym the light came on.

Car still ran fine so I'm My car just hit 70K and I haven't taken it in for timing belt, or water pump change ever.h: