Looks like my plane has the older Stewart Warner gauge and I am getting a high temp indication and the only thing I can find as far as a sender p/n (assuming that is the issue) is to upgrade to SK152-23.

Im assuming this kit contained the Rochester gauge and sender but can seem to find any info on it. Anyone else have any idea? The manual calls for these as updated;

Gauge P/N C669564-0101
Sender P/N S2335-1

I've verified the actual temp with a different gauge and its running right at 190. I've looked into the EDM and JPI options but don't have any room in the panel. If I have too Ill remove the ADF but figure I try going this route first.

P.S. Thanks Hung and Scott Keating for all the prior research you've done and posted on the forum here