1990 164QV Euro spec & 1991 168B
That is the oil level sender.
Never assume especially on an Italian car. GTV6 does not have oil level circuit nor does it have a low oil pressure switch or light, just gauge with needle.Thanks Steve - I assume this connects to the warning light on the dash oil pressure gauge? Based on the oxidation on the contacts, can tell this hasnt been attached to anything for a long time.