Oil light problems

[Knighty]

Can anyone help ive flushed my engine new oil and filter changed the pressure switch but im still getting a beepong/flasing warning light its only when its not boosting and around town on a long run it doesnt do it

[Trevor]

Hi Richard...welcome to the forum! 

Sounds like a long shot, but is the oil grade correct?  

If not, at low revs the pressure may not build up enough.

Regards,  Trevor - Admin