Altering the holder for the Engine Temperature Sensor has been the topic of much trial, error, and debate. After almost eight years and over 55,000 miles, I decided to swap to the brass sensor holder (GU 30163301) and packed the housing with copper paste. Not that I needed to change it, but it was all the rage at the time and my Guzzichondria got the best me. I wasn't sure it ran any better, in fact I thought it got a bit worse, but went on to chase down a series of other, mostly electrical,