Hello, need advice. Have 98 dodge Dakota rt. 5.9l. It is red. Nothing like blue one in auction. Has 105k miles.get dashboard light. Saying gas temperature exhaust sensor. I cannot find one anywhere. It will not erase on dash either? I have looked it up and sensor goes on exhaust. Anyway any advice where to buy one greatly appreciated. I have looked alot. I also read that code sometimes comes on if ac clutch relay is bad? Ac wasn't working so hot and replaced that. I obviously not mechanic but a friend of mine is. Thanks. Brian