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Bad coolant temp sender or bad ECU? S80 2001

posted by  interstition on  Sat Dec 6 14:54 CST 2014
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last visit: Mon Apr 28 10:13 CST 2014
[RELATED]

You know how you drop a little tool and it disappears inside you engine bay never to be seen again? Sometimes that can be a good thing. Especially since the one I dropped was just a T25 bit.

When I got down to look under the car in a fruitless hope that it was on the ground, I saw two wires dangling to the ground. That can't be good. I know an oil change or two ago, I say that a couple of different wires were hanging down some and zip tied them up better. It appears I didn't do this one well enough or a snow bank got it. It sure looks like it would go to an 02 sensor and I found this post which doesn't make me too happy so far.

http://volvoforums.com/forum/volvo-s80-18/2000-s80-o2-sensor-problems-possibly-others-28742/

So I guess I have to try to splice in some new wires, hope I get them connected properly and then hope my ECU isn't bad because of this. Doesn't seem likely that a missing 02 sensor is going to make my temp gauge stop working though, does it?






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