Nissan 370Z Forum - View Single Post - VVEL Question on Intake Manifold Pressure

SonicVQ · 01-07-2016, 10:31 PM

From what I have read with the VVEL system, the throttle bodies are not used once the engine is running.

If so:
(1) Where does the vacuum for the brake booster come from?
(2) Why does my MAP sensor show 22 inches/Hg vacuum at idle?

What is going on?

01-07-2016, 10:31 PM	#1 (permalink)
SonicVQ Base Member Join Date: Jan 2016 Location: Ontario Posts: 230 Drives: G37 Sport Rep Power: 6720	VVEL Question on Intake Manifold Pressure From what I have read with the VVEL system, the throttle bodies are not used once the engine is running. If so: (1) Where does the vacuum for the brake booster come from? (2) Why does my MAP sensor show 22 inches/Hg vacuum at idle? What is going on? Last edited by SonicVQ; 01-07-2016 at 10:42 PM.