My oil level indicator light goes on and off intermittantly. It is on for 5-10 minutes, then off for 5-10 minutes, etc. It is a 2005 roadster. I had an overfill issue two oil changes ago, and when the indicator light came on, it noted that the level was high. This time, it does not state high, low, or anything. In the manual, it states that if it does not show the oil level (high, low 1 qt., etc.), or if the oil level warning light stays lit while testing, there is a problem with the system. Where is the oil level indicator sensor located? Any clues on how to troubleshoot the system?