I have the rpm switch from summit and a relay. I saw these diagrams on the net but yet I'm still confused on how to set it up. Does anyone have anyway for me to figure this out easily?

Here are the pics:



Where does everything go????? I'm so confused!! HELP!!!!!!!!!!

My box looks a bit different. It has a black, red, white, yellow, and grey wire. Dont really know how I'm supposed to hook up the relay to the box to the wires on the vtec and dizzy.


In my instruction this is what it had. I have 5 wires, not four like the one in the pic.
Black - ground
Red - 12v power supply
White - to the tach(blue wire?)
Yellow - to the negative wire to be turned on
Grey - to the negative wire to be turned off


Does anyone have the same rpm switch? I have no clue how to install this and with all the instructions and diagrams I'm reading, its making me more and more confused.

 

anyone?????

 

What's wrong with your ecu controlling your vtec? Changing your vtec point can be bad if there isn't enough fuel/air to compensate (did I spell that right?). I dunno, just tryin ta help.

 

if the fuel map isnt fit for vtec needs, it could make you lose power and ruin your eninge.

 

well actually I did a mini me swap. Everyone has a few positive things about this. One is being a cheap way to activate vtec but like I said. This is temporary untill I get a fields or apexi. I know for a fact that I will be running a little rich but I know that nothing is gonna get screwed up. Theres a few people I know running mini mes with a rpm switch that run rich but they dont have anything screwing up.

 

just did this one up in ms paint. if you're still confused pm me...




[Modified by kyle h., 12:47 AM 4/2/2003]

 

Thanks Kyle h!!!!! One of thee best diagrams I've seen from a honda-tech member!

 

damn... tried it out. It didnt work. Did it just like the diagram and also tried it without the relay. I got pissed off so I put it back. Then the car wouldnt start and I got more pissed. I found that the ignition coil fuse was burnt out. Replaced that and now the car runs. What went wrong? Maybe the box is a defective one?

 

maybe you didnt wire it correctly? the relay transfers the negative signal from the rmp switch to a positive signal. so the relay is a must. but not using the relay you would be grounding the vtec solenoid..causing a short and thus blowing your coil fuse.

 

did it just like the diagram. Didnt work.....

 

what did u wire the rmp switch and the relay power switch too (the wires that turn on the relay and switch (on my diagram, the smaller red wires))?

 

this what you got:

Black - ground
Red - 12v power supply
White - to the tach(blue wire on the distributor plug (next to the big blk/yel wire)
Yellow - to the negative wire to be turned on - pin 86 on the relay
Grey - to the negative wire to be turned off - tape with electrical tape and leave off

relay:
85 - big black/yel wire on distributor plug (gives +12v when ign key is on)
86 - yellow wire from your rpm switch
87 - to gray plug on vtec solenoid
30 - big blag/yel wire on distributor plug


greg

 

Thats exactly what I did........ 87 - to gray plug on the vtec solenoid? You mean the Green wire with white stripes?

 

yes its ona gray plug (not the green plug) on the solenoid. what about cutting the wires on the rpm switch for 4-6-8 cylinder mode ? similar to an msd ign so it reads correct rpm.

greg

 

are you talking about the ecu? I have a stock LX ecu. I dont see any grey plug on my vtec. Maybe I didnt mention. This is a SOHC vtec. Not DOHC if that helps.

 

on my z6 head the activation wire located at the vtec solenoid is green/yellow.

 

Hey the info is helping, but i have a blue wire on my msd rpm switch should I cut the wire or leave alone?

 

sorry to bring this from the dead but where do you pick up a relay? and what about the green plug on the head that's for oil pressure do you just leave that alone?

 

the relay I got at an auto store, just install it the way you see it on the pic above. Tells you exactly where everything goes.

 

I just tried hooking one of these up and can't get it to work. I was checking voltage on some of the wires and my white wire that hooks up from the msd to the neg. coil wire has 12v coming from it. Is this normal? Could the msd be bad? Thanks