hey..i need help installing a rpm window switch for my zex kiit.

the switch is pre programmed and has 4 wires

black---ground
red---12 volts
green---signal in
white--output

exactly how is this installed on our mustangs... please help me and be specific to where each wire connects too..

today is my birthday and its a great day to test my zex kit..which i havnt in over a month

 

What window switch are you installing? If it is the Zex kit, you should be able to get the installation instruction off their web site. I can't remember now exactly how I installed mine last fall. The black and red are easy.

I THINK that the white goes between the NMU and the TPS wire, and the green taps into one of your fuel injectors for the RPM data (there may be other spots as well to get the signal).

 

where do i tap rpm data and HOW!!! THIS is the part that i needd help with....thanks

 

I got my RPM data from the negative wire (black I believe) on the #1 fuel injector. Just tap in there and set up your window switch for the type of engine you have -- do you have the V6 or the V8?

 

i have a 2007 v6, its a switch that was made for me pre programmed...i just need to know where the green wire for rpm info goes, and the white wire goes to power the zex system....also what spark plugs do you recomend?? Ngk tr6 ok?

 

V6 is what I have as well, and just tapped the ground for the #1 fuel injector. It is pretty tight area but you can pull the electronic plug and tap it. You have to tell the window switch that it is a waste spark ignition so that it properly reads the RPM's. When you say it is "pre programmed" does that mean someone already set it up for the waste spark ignition and set up your RPM window?

As far as plugs, the V6 already runs a colder plug so unless you are going to run a big shot the stock plugs should be fine. I run a 75 shot and the plugs after one season looked almost new still.

 

its a none adjustable switch. I had it made for me pre programming the rpm windows. The guy who makes these rpm switches just needed my car info.. I told him its a mustang 2007 v6 4.0 it a switch that he actually makes, its not an electronic switch with any options. Just has the input wire the power and ground, and the white one watever i said that was...

 

Paul - I tried to respond to your PM but your inbox is full