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

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- - question about VVEL, throttlebody, and drive by wire... (http://www.the370z.com/engine-drivetrain/7173-question-about-vvel-throttlebody-drive-wire.html)

Quote:

Originally Posted by kannibul (Post 127882)

Nice pics...

Still, the question remains - what happens if the engine is running at 3,000 RPM, and the DC motor is unplugged (simulating a failure)?

I imagine there won't be and destruction of the valves/pistons, etc, since the timing of the cams should still keep everything intact...

Still, it doesn't have a cam in the traditional sense...

Nothing will happen, other than the car will go into limp mode ,and will not rev much above idle. Nothing will be destroyed...I promise. It still has a defined range of operation, and that range will not break anything.

Quote:

Originally Posted by 6SPD_FTW (Post 127955)

There is a vacuum tank somewhere, built into the intake manifold. It uses a one-way valve to maintain a supply of vacuum for the brakes. There typically is vacuum in the manifold only at idle as that's usually the only time the throttles close (unless the VDC system is cutting power to maintain traction). So, vacuum pressure should be maintained at a fairly constant level.

Late,
Trav

How does one get vaccum when using forced-induction?