Specs say the pressure should be 40# at normal driving so yours doesn't seem too far off. Perhaps the sender has become a bit sensitive or was the wrong range as they do come with various pressure on/off points. Here is one from the x-ref Kev found that might be worth trying or perhaps you can verify yours operates around that 20# range.
Attach file:
(13.21 KB)
(20.46 KB)
This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=81176