Vdub GOLF MK3 oil pump problems

VW uses two oil sensors. One by the filter and a second on the cylinder head. The one on the cylinder head is for low pressure over a certain RPM range and kind of like a warning. The one by the filter is a all the time panic situation. The one on the head is giving you the warning.

Could be as simple as a sensor that's too sensitive on the cylinder head or oil that's too thin. But these people have good prices on pumps and they are easy to change.

reached operating temp, and has been driven a distance. But if I press the clutch in, speed up, or downshift it stops. I am confused, I dont want to rip it apart to check the pump, if it is something simple like a sensor, or a belt slipping. I do my own repairs as often as I can if anyone can help it would be greatly appreciated.

If you are not using 15W50, then that is the problem. Your year VW does not need the thin oils that are currently out there. You can use 10W40 in the winter time if you are locakted up north. The 15W50 should fix your problem. It's the oil pressure sensor at ~2700 RPMS giving you the fault with thin oil.