I have a 2001 Vw Beetle with a 2.0 5 speed. And my problem is when I rev the motor over 2000 rpm. The cars oil light comes on and flashes. But when it returns to idle goes off. And when I turn the key switch on. It comes on and goes of. I've had the oil pressure checked and the mechanic said it was good. I put a new oil pressure sender on it. And a new coolant sensor on it. The cars had oil changed every 3,000 miles. And runs perfectly no rattles or any abnormal noises. But the light comes on. Plz help I love the car but this has really sumpt me.