My oil light isnt coming on, on the dash. I've tried to by pass the switch but still no light on the dash. Can anyone help me???? Also no light when the ignition is on, and engine not started. I blew my turbo, and the light never came on either, i've fixed it myself and I have relised the light issue. Is this a common fault??? Don't wanna drive it, because if I lose oil pressure and not aware because of no light then I could blow the turbo again!