I have recently replaced the coolant temp sensor on my 2000 A6 2.7T because it was reading as though the car was overheating, but it was not actually doing that. Now that I have it replaced it is reading a lot colder than it should. When warmed up, the temp gauge would normally go to halfway and sit, but now it only goes about an 1/8 of the way up and sits. This has lead to some really rough starts when the car is cooled down. Anything I should check or try? Thanks