Nissan 370Z Forum - View Single Post - question about VVEL, throttlebody, and drive by wire...

kannibul · 07-25-2009, 07:04 PM

As I understand it, the throttle body is basically wide open all the time, and the engine is controlled completely by the VVEL system - where the intake timing/lift/duration is varied to increase/decrease to increase or decrease RPM and/or power.

So...with that, the VVEL system is powered by a DC motor...one for each bank of cylinders, where it controls the lift/duration/timing part of the whole equation (I there's an eccentric shaft that replaces the camshaft, I know...)

What happens if one (or both) DC Motor(s) fails and locks up, and say you're going 75MPH down the highway?

07-25-2009, 07:04 PM	#1 (permalink)
kannibul A True Z Fanatic Join Date: Jun 2009 Location: Jenks, OK Posts: 2,281 Drives: 370z Touring/Sport Rep Power: 267	question about VVEL, throttlebody, and drive by wire... As I understand it, the throttle body is basically wide open all the time, and the engine is controlled completely by the VVEL system - where the intake timing/lift/duration is varied to increase/decrease to increase or decrease RPM and/or power. So...with that, the VVEL system is powered by a DC motor...one for each bank of cylinders, where it controls the lift/duration/timing part of the whole equation (I there's an eccentric shaft that replaces the camshaft, I know...) What happens if one (or both) DC Motor(s) fails and locks up, and say you're going 75MPH down the highway?