Well gonna fit a oil pressure gauge to the original under the alternater. My question is can i just leave the standard one unpluged after fitting the new gauge?

 

Can do as long as you know your gauges are accurate might be worth fitting one of the splitters to keep the oe light on the dash just for piece of mind

 

ok mate thanks so all it will do if i leave it off is not light up the oil light on the clocks?

 

The best thing to do would be buy one of these kits.

Scoobyparts Ltd OIL PRESSURE & OIL TEMPERATURE GAUGE FITTING KIT

It allows you to keep all standard warning lights and have an accurate gauge reading.

 

personally i got one of the fitting kits like above as the dash light ciomes on at about 2.1psi if remeber right and alot of aftermarket gauges arnt totaly accurate towards the lower end

 

Leave it off. The light comes on at such a low pressure that if the car ever REACHES that pressure, the engine is already fekked

Can you afford gauges with an alarm installed? My Defis are set so that the alarm sounds below 2 bar, which is around 29 psi.