I've been to visit my auto mechanic for a conference. He's done work for me for many years and most of what he does now are things that we both understand and that I'm just past the point of crawling around under a vehicle to do myself. He is extremely good at what he does and says "I don't know but will find out" when confronted with the rear problem he hasn't dealt with before.

We decided that 'operating temperature' refers to the engine's temperature and not of electronic components that may be positioned and mounted with a variety of variables. We also agree that the top of the line analyzer, interpret the signal from a sensor and not it's integrity.

__________________