Mark 2 lover with problems

[jdsnoddy]

As a courtesy, we might help. When you list an issue like this, please include your odometer reading and any trouble lights on the dashboard. My sense is that you've got a bad sensor (no pun intended). Please see: https://www.ifixit.com/Answers/View/...ge+not+working
This fact could be easily checked by reading the trouble code from the ECU. Recommend you take it to a parts store like Auto Zone; have them read the trouble code for free; and replace the bad sensor.
OBTW, the sunlight and heat most probably had no effect;
The sensor was failing regardless.

Welcome to the forum, we'll do all we can for $12 annually.
Our policy is no religion or politics: everything else is fair game.
John