I have just finished putting my 00VI on my 98 maxima, now I am trying to get my summit switch to control the switch over point. The wiring that I have done is not working...what gives? I am running the red wire to the cig lighter for +12v, I am running the yellow wire to the red wire on the 00VI plug, I am running the back ground wire to the ground for the cig lighter, I am running the white wire to the ecu to get the tach signal. I am not using the gray wire. So what am I doing wrong? The way that I have it wired it pulled the VI open no matter where the RMP setting is set, the only way to close the VI is to un hook the yellow wire. Any one have any ideas? I am getting a constant 12V on the yellow wire even when it should not have any voltage.

 

yellow from RPM switch should go to the ground on the VI solenoid then 12v power to the other wire on the VI

 

does it matter that I used a ground undernieth my radio instead of grounding at the VI selonoid? I have the VI selonoid grounded to the spot where my injectors are grounded. Then you are saying the red wire should go to the red wire on the VI selonoid? Is the rest of my wiring correct? What wire is giving the switch power if my red wire goes straight to the VI selonoid? Thanks for any help.

 

I'm not sure if the wire colors might be different on our VI solenoids, so i'll refer to them based on positioning. The thicker wire (the one closer to the driver side fender) needs to go to a steady +12v/ I ran it straight to my battery. The thinner wire, the one closer to the manifold, should connect to the yellow wire on the Summit RPM switch. That should be the only connection to that wire on the solenoid. You don't have to run that to a ground like you did for the injectors.

If I'm not mistaken, the way the switch works is that once you reach the set RPM's, it actually provides a ground through the yellow wire, thereby activating the VI. Once you drop below the RPM setting, the ground is cut, allowing the VI to close. If you ran the inner wire of the VI solenoid to a steady ground, I don't think it will ever close. I did the same thing that you did - I cut into the cigarette lighter for both power and ground to the switch, and it works great. so everything else that you've done seems to be correct. The only thing that I did differently was that I used the TAM screw for my RPM signal. Be sure to set that switch to a lower RPM than you actually desire, it will be slightly off because it was designed for 8 cylinder engines. On my switch, a setting of 3200 RPM's opened the VI at 4500-5000.

 

okay thanks for that information. I guess it is confusing me because on my other fourth gen I am controlling the VI by a VAFCII and with that I just run the Vtech wire to the fatter of the two wires and the other wire is going to ground. I will try what you suggested tomorrow. You are right about the selonoid never closing with the ground wire hooked up.

 

cool, everything is working now. Thanks for your guys help. I had to set the dip switches at 6800 to get it to open around 5k. I can't wait for the track's to open back up, when the VI opens it's pretty brutal when I go to full boost until 7K.

 

Damn I need to switch my wires I have mine backwards. lol

 

stop copying me