I don't know anything about a 6320 thermal sensor, but I have experience with the air temp sensor on my Kaw 4010 mule. In the summer the computer sends too much fuel to engine and it idles like crap. I bought a kaw service manual. Ran every test, did a computer scan and everything is within factory specks.
As a last resort, I decide to replace the theromister with a fixed resister with less resistance making the computer think the air was a little warmer. It worked. After playing around trying to make a theromister the resistance I wanted, I finally put OEM thermosister in place and wired another 10K thermosister in parallel with it.
Engine now runs better, idles better and plugs are cleaner than when it was new. I could tell when it was new my fuel/air mix was rich, plugs were a little carboned.
Good luck with your temp sensor problem. I've heard of a guy who has similiar issues with his van. He hung a new water temp sensor beside his engine and it worked better.
I know you always run a risk damaging an engine when you play around tricking the computer. How is that any different than when we play around adjusting the fuel mix screw on a carb? geo
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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