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Go Back   SR20 Forum > Main Forums > SR20VE / SR16VE



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Old 07-20-2005, 01:21 AM   #1 (permalink)
VE NX-R

 
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How to trigger VVL with MSS and DE ECU??

Hello everyone
Does anyone know how wire MSS with DE ECU to trigger VVL??
Because I have got the DE ECU and MSS, engine is running fine but VVL not hooked up please help
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Old 07-20-2005, 02:13 AM   #2 (permalink)
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Search . There is also a sticky at the top of this section to help you program it.
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Old 07-20-2005, 02:19 AM   #3 (permalink)
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Because I'm feeling nice

*Red = 12volt + IGNITION
*Black = 12 volt - GROUND
*Brown = RPM
Light Blue = Speed
Orange = 12VOLT CONSTANT

You don't need to wire in the speed, tps, or any of those. Green and yellow go to the solenoids. Remember, they switch ground, not power, so you need also need a 12v source feeding the solenoids.
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Old 07-20-2005, 02:30 AM   #4 (permalink)
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Thanks for that, but I still not clear about the wiring which wire goes to where??? and you mean to connect the MSS straight to to solenoid??
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Old 07-20-2005, 02:34 AM   #5 (permalink)
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you have a harness on the solenoids with two wires coming out, right? Take the green wire from the MSS and connect it to one of the wires coming out of the harness on the solenoid. Then connect the other wires from the harness to a 12v source. (I was told it doesnt matter which gets the 12v and which gets ground, but I just copied how that person had theres. I could check tommorow to see how I have mine, or im sure someone else will chime in). Repeat the process for the other solenoid, now using the yellow wire. I used fuses to protect the solenoids just in case. If you don't have the harness/connector/pigtail or whatever you want to call it for the solenoids, then you gotta find some. The one from the knock sensor will work for one of them.

-Mike
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Old 07-20-2005, 10:02 PM   #6 (permalink)
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Hi Mike you are saying that it doesn't matter which one goes to 12V and with direct connection to MSS, is there any problem after such as not engaging VVL??
What I understand is using MSS to give signal to the solenoid to engage if I use DE ECU, but would it run as well as VE ECU??
Thank you
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Old 07-20-2005, 10:28 PM   #7 (permalink)
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Quote:
Originally Posted by Cabin03
Hi Mike you are saying that it doesn't matter which one goes to 12V and with direct connection to MSS, is there any problem after such as not engaging VVL??
What I understand is using MSS to give signal to the solenoid to engage if I use DE ECU, but would it run as well as VE ECU??
Thank you
That is what I was told, but I will not commit to saying it's 100% correct because I don't know for sure. As far as activating the cams, it wont make a difference whether or not the ECU does it or the MSS does it. With the MSS you will have more control.

As far as comparing the two ECU's, the VE has timing/fuel maps more appropriate for the VE. If you use the DE ECU, you will need to use the DE MAF and Injectors.

-Mike
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Old 07-20-2005, 10:44 PM   #8 (permalink)
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Mike
Now I have my engine running but no VVL, I use DE ECU, injectors and MAF it sounds ok, but once VVL kicks in isn't that I will need more fuel because there are more air pumps in and I thick stock DE ECU will not be able to correct the right A/F ratio and what do you think.....
Thank you
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Old 07-20-2005, 10:56 PM   #9 (permalink)
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It will do fine, thats what the MAF is for. I'm not sure at what point the DE injectors max out at though, im sure someone here can chime in on that as well. I'm nearly certain that the stock DE injectors are good for a VE with basic bolt ons.
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Old 07-21-2005, 05:23 PM   #10 (permalink)
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Quote:
Originally Posted by Cabin03
Mike
Now I have my engine running but no VVL, I use DE ECU, injectors and MAF it sounds ok, but once VVL kicks in isn't that I will need more fuel because there are more air pumps in and I thick stock DE ECU will not be able to correct the right A/F ratio and what do you think.....
Thank you
true..ull need more fuel when vvl pops.what ur timing at..i hope its 22* otherwise ur car is running lean at vvl..when i still used my de ecu the timing was way high at 22* and it ran really rich..fireballs and all.i have felt other ve's with de ecu's run lean and i know how u feel.i have an inaccurate a/f gauge on my car and at idle it was stuck on green..rich..and when vvl popped it was always green.on other cars ive seen the a/f mark vanish towards the lean side when vvl popped.nuff said car was slow a#$ hell..what ecu r u running?reset the timing
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Old 07-21-2005, 05:30 PM   #11 (permalink)
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i know its a silly q...but why are u using mss instead of the msd?
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Old 07-24-2005, 04:05 AM   #12 (permalink)
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Thanks T-Bags
but after all that I am still not so sure about the green and yellow wire from MSS connect to which wire on solenoid (besides can you tell me what colour of the wire from MSS is chanel 1 or 2)?? and can I directly connect 12V from the battery??
also I is hard to find MSD in here and MSS has more feature it will work fine with DE ecu (a lot of guys recommand it)....
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Old 07-26-2005, 08:08 AM   #13 (permalink)
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Quote:
I am still not so sure about the green and yellow wire from MSS connect to which wire on solenoid (besides can you tell me what colour of the wire from MSS is chanel 1 or 2)?? and can I directly connect 12V from the battery??
The green and yellow MSS wires feed ground to the solenoids. Each solenoid has two wires -- one each gets a ground wire from the MSS (yellow or green) and the other ones get 12V positive from the battery (use a 10 amp fuse for each circuit between the battery and the solenoid - you can use the little fuse box that came with the MSS). It does not matter which solenoid wire gets ground and which gets 12V. Sorry, I can't remember which is channel 1 and which is channel 2 (green vs. yellow). Once you get it working, you can check this with a multimeter -- might be easier than searching.
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Old 08-02-2005, 05:24 AM   #14 (permalink)
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i just want to make sure i have my mss setup right.

I have 1 set to 4500 on and 4500 off
I have 2 set to 4500 on and 4500 off

I cant feel or hear when the vvl engages. Are the 1 and 2 numbers supposed to light up when they engage. I have all other inputs (speed, temp, etc..) set to 0.

I am running the DE ecu and the car is too slow for the mods I have.
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Old 08-02-2005, 06:32 AM   #15 (permalink)
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Ok nevermind i had it setup wrong. i corrected my settings and boy does she kick in hard. The G-Twizzy dont play, lol
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Old 08-02-2005, 11:12 PM   #16 (permalink)
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suweet
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