00VI/VIAS Mystery Problem
#1
00VI/VIAS Mystery Problem
This may be of interest to some of you guys who've done the 00VI mod to your 4th gens:
http://forums.maxima.org/showthread....=1#post4260399
http://forums.maxima.org/showthread....=1#post4260399
#2
Yep, you are not supposed to supply vacuum to your VIAS, it doesnt need any sort of vacuum or anything connected at all, you could leave it alone and as long as teh electrical is connected it will open fine...
That's just, "takes in a breath" when it opens, but needs no vacuum as it has its own vacuum canister system built in... hard to explain, wheres Stephen Max... lol
That's just, "takes in a breath" when it opens, but needs no vacuum as it has its own vacuum canister system built in... hard to explain, wheres Stephen Max... lol
#3
00VI/VIAS Mystery
The is a vacuum nipple on the front of the VIAS (as an integral part of the Vacuum Solenoid Switch (VSS)) that is designed to have a vacuum source hose attached to it. The power valve actuator depends upon vacuum to open the power valve.
#5
The nipple on the front of the solenoid is not for vacuum... it supplies ambient air, from the intake ducting BEFORE the throttle body, to the power valve actuator. When the solenoid activates, it cuts off the ambient air and allows vacuum to pass to the power valve actuator. The vacuum comes from a tank located internally in the VIAS assembly/manifold.
#6
Originally Posted by DandyMax
The nipple on the front of the solenoid is not for vacuum... it supplies ambient air, from the intake ducting BEFORE the throttle body, to the power valve actuator. When the solenoid activates, it cuts off the ambient air and allows vacuum to pass to the power valve actuator. The vacuum comes from a tank located internally in the VIAS assembly/manifold.
#7
Originally Posted by DandyMax
The nipple on the front of the solenoid is not for vacuum... it supplies ambient air, from the intake ducting BEFORE the throttle body, to the power valve actuator. When the solenoid activates, it cuts off the ambient air and allows vacuum to pass to the power valve actuator. The vacuum comes from a tank located internally in the VIAS assembly/manifold.
Point of Information: The Nissan FSM clearly shows on the Vacuum Hose Drawing (Page EC29) a line that draws vacuum from the smaller of the two, side-by-side vacuum nipples on the top, rear, middle of the manifold, which then supplies the vacuum to both the VIAS Control Solenoid Valve and the Fuel Damper.
#9
Originally Posted by Curt
Question: If the nipple on the front of the solenoid is not for vacuum... (as you say, it supplies ambient air), then where is the vacuum source for the internal tank in the VIAS assembly/manifold?
Point of Information: The Nissan FSM clearly shows on the Vacuum Hose Drawing (Page EC29) a line that draws vacuum from the smaller of the two, side-by-side vacuum nipples on the top, rear, middle of the manifold, which then supplies the vacuum to both the VIAS Control Solenoid Valve and the Fuel Damper.
Point of Information: The Nissan FSM clearly shows on the Vacuum Hose Drawing (Page EC29) a line that draws vacuum from the smaller of the two, side-by-side vacuum nipples on the top, rear, middle of the manifold, which then supplies the vacuum to both the VIAS Control Solenoid Valve and the Fuel Damper.
#10
Crow-Eating Time
Well, I just went out there with the electrical connector plugged into the VSS but not hooked up to any power source. The vacuum hose to the VSS was pulled off and plugged. With the engine running I touched the two leads to that VSS electrical plug to the battery terminals. Walah, that puppy avctuated! And again, and again and again (just to make sure it wasn't operating off of residual vacuum in the built-in vacuum reservoir).
Feathers Suck!!
Feathers Suck!!
#13
Originally Posted by Curt
Well, I just went out there with the electrical connector plugged into the VSS but not hooked up to any power source. The vacuum hose to the VSS was pulled off and plugged. With the engine running I touched the two leads to that VSS electrical plug to the battery terminals. Walah, that puppy avctuated! And again, and again and again (just to make sure it wasn't operating off of residual vacuum in the built-in vacuum reservoir).
Feathers Suck!!
Feathers Suck!!
#14
Thread
Thread Starter
Forum
Replies
Last Post
litch
4th Generation Maxima (1995-1999)
123
01-04-2024 07:01 PM
jmlee44
4th Generation Maxima (1995-1999)
8
10-02-2022 02:13 PM
HerpDerp1919
3rd Generation Maxima (1989-1994)
2
09-29-2015 02:02 PM