I would find a Mercruiser Diagnostics reader and see if it's throwing a code. You just about have to have one with the newer rigs...otherwise you end up chasing parts and guessing.

No codes. Made my own reader off of another members thread.

Thanks. What i was thinking but had no exp with them.

Look very close to the sensor head, there is flakes of metal stuck to the face. The metal must have come from the area around the screws. This was after wiping it off, the face was covered.

I am willing to be this is the issue.

At some point a previous owner put these Cherry brand sensors in. Both distributers have them....
Not marine rated.

Another look......

You wouldnt happen to have the link to that code reader thread would you?

one thing,s for sure,if it is electronic,it is prone to failure.

search it. I just closed it yesterday.

LC

Let us know, I wonder why both were changed.

Awesome... Thanks!