i have installed the MEVI
vacuum works fine
soleniod works fine

i need help on the electrical part
i have tried all the diagrams on the MEVI infos
i got it working but the thing is
its always on

my wirings are:

red--------- batt
black------- ground
white------- comp (green and white wire in the comp)
yellow and grey are on the soleniod

i ran the can to test the rpm switch
rev it up to 5000rpm no response on the MEVI
setting of summit switch is 2200rpm

no relay on this set up
when i put the relay it is always on

can someone help me with the wirings

 

Ok well the Tach signal wire is a white wire with a green stripe coming from the ECU. And IIRC you dont need both wires from the Summit switch attached to the solenoid, just one. One wire is normally open (open circuit until Summit switch reaches target RPM, then closes) and the other is normally closed (Closed circuit until Summit switch reaches target RPM, then opens) you want to use the wire that is normally open so that it activates the solenoid only when the engine reaches the target RPM setting.

 

There should be one wire unused with the summit switch (I think it's the grey one). There is two activation wires, one is an on and one is an off. You will have one going to the battery (or whatever power source), one going to the ground, one going to the ECU, one to the soleniod, and one is not used.


Once you have the wiring correct and if you still have problems try setting the summit switch for a different rpm....seems some have to use different settings for a 5kish activation. I have to use 3400.


**edit** yes it is the grey one that is unused**edit**

 

thank you i go and try it

 

i tried it
nothing happened
any other ideas

 

also then i have to ask you guys
the other soleniod wire is ground right

 

No, one solenoid wire should be +12V and the other should be the yellow summit switch wire. When the target RPMs is reached the yellow wire becomes a virtual ground allowing the solenoid to activate.

 

anyone dyno'd the MEVI yet?

you guys getting them from junkyards, or new from nissan? new sounds expensive.

 

thank you again
i will try it

 

i got mine new
i have dyno my car period
i need a few more upgrades
i will dyno when all upgrades are all on
so it be tune too
not just base run

but if you are looking for a MEVI dyno
i believe they all in here
if you can search
i can not tell you right now
it bookmark on my other comp
sorry about that

 

Maxima.org heiko?

 

lol my thoughts also!

My max is so fast
It turns around turns
when I push my right foot down
away go the things

 

cant search. not a "registered user" and i cannot donate to become one.

can anyone do a search? i would be greatly appreciative. thanks!

 

hey
car should go forward
not around
just a pointer
goodluck

 

here you go

http://forums.maxima.org/showthread.php?t=217001

that is the mevi info
enjoy