Low oil pressure warning

[judas]

Sat in a queue for a car park Saturday night and the temperature was creeping up and suddenly peaked at 120 At this point I started getting low oil pressure warnings - 1psi! Is this normal? Oil levels are ok, but I have just had the oil pressure sensor changed as it had a small oil leak through it.

[judas]

Well, sometimes they kick in ok at 92 and 94, sometimes they forget until the temperature gets much higher