Low oil pressure readings on the stock oil pressure gauge can be sometimes blamed on a bad oil pressure sensor.  Want to know why the oil pressure sensor goes bad?

Disassembled stock oil pressure sensor

Left is the "cap".
Right is the sensor internals.
Close-up of sensor internals.

Ringed gear at bottom is actually an adjustment for calibration!
Close-up of "cap".

NOTICE - corrosion and crud at center.
This is what causes erroneous readings due to bad contacts!

Questions?  Comments?  Send mail to:  reted@fc3spro.com