I was wondering if I got a 5th gen. ECU, if I would be able to eliminate needing an RPM switch for the 00vi? From what I understand, the 5th gen ECU is programmed to control the butterfly valves in the VI? I have the opportunity to buy a 5th gen ECU for $15, but want to make sure I can use it first. Any help is much appreciated.

I have been researching this for the past 2 hours and this is really the only part I am stumped on. Thanks!

If more info. is needed, just ask.

 

Any thoughts?

 

I think its more work than its worth to just control the VIAS. I have a brand new Harlan RPM swith ill sell you. I think you will run into a few other issues with the 5th gen ECU because of other differences between the two 4th and 5th gens

 

How much you looking to get for it?

 

Horrible idea. Use whatever ECU you have now and just buy a VAFC2, you can get one used for around $100-200. That way you can tune it properly.

 

If your throwing that kind of money at it i would just throw in a Emanage(blue or ultimate) Hell for a temporary solution you can toggle switch it and manually open and close it. Yes it sucks but its better then keeping it closed all the time.

 

Do we not use Summit RPM switches anymore?

 

Right?

I cant belive this is even a thread......

 

There are many options, but only a few reasonable ones:

1.) VAFCII. IMO, best option. Cheap, easy, and effective.

2.) RPM Switch. Harlan/Summit. I’d lean towards Summit. I had a bad experience w/ my Harlans (2). Summit was a simple installation, cheap, and reliable.

3.) EMU/EMB. Full tuning device, worth it in the end, but it depends on where the “end” for you is. As you know, these devices allow essentially full tuning experience and will require a lot of wiring, a WB, and some dynotime, or other means of quantifying gains.

4.) JWT ECU modified for this VI activation. I was quoted an extra 200$ on top of the normal fee from JWT, way too expensive.

5.) 5th gen ECU (uncharted waters, probably more difficult than what it’s worth). If it’s a 5th gen ECU, you’ll also need a new key programmed for the 15$ ECU, which costs about 120$ or so.

 

There was a thread a little while ago on the same exact subject. I went into detail as to why it would be absolutely stupid to do it. The guy went ahead and tried to do it to "prove me wrong". Haven't heard anything from him since.

 

If you were to swap in a ecu you mid as well just do a full 3.5 swap....

 

I remember that thread


This.

 

http://forums.maxima.org/5th-generat...cu-wiring.html

 

not to be sarcastic... but what would be the advantage of doing this???

 

There is none.

 

Yeah, you don't wanna do this. RPM switch > 5th gen ECU/harness swap, and a e-Ultimate can control the 00VI.

 

Well, the RPM switch I want is $150 and the ECU is $15. So money wise, yes.

It's out of the question now because it seems like it will be more work than It's worth. I think I'll just get the RPM switch.


Thanks a lot guys for the info! Also, If anyone has 3 rear coils OR an RPM switch (not Harlan) for the 00vi I may be interested. =o)

 

Hmm, that seems horrifically steep for an RPM switch.

Search through the many VI threads, I believe there is obviously a model number for the Summit. I remember paying around 50$ for mine.

 

Oh wow, I was looking at this MGD switch that was $150.

I think I'll look for the Summit now.

 

Use your stock rear coilpacks.

 

buy the $15 ecu, resll it make profit and put it towards a vaf2

 

I was told I needed to grind something down to be able to do that?

 

Im sure the timing is alot better with a 5th gen ECU vs a 4th gen





once again ill explain this.

4th gen VC You will need to grind off some of the boss's to make it so the upper IM can clear. And relocate the pcv.

5th gen VC is a direct bolt on. And to use the 4th gen coils i think you will need to use the 5th gen bolts and drill larger holes in the 4th gen coils to compensate for the larger bolts for the 5th gen VC.

 

Thanks!

 

Why the h3ll would you pay $150 for an RPM switch when a VAFC with tons more functionality can be had from craigslist or feepay for less?

Besides, if you're using the DE-K injectors, you really do need to tune since they flow more.

 

Well, someone on the org recommended the MGD switch so that's why the hell I was gonna pay $150, lol.

So with the Summit switch or equivalent your saying I will be able to tune my car using the 2000 fuel injectors also? I do appreciate all the responses!

 

No, you will need some type of AFC to tune with. The summit switch will just activate the vias/power rod.

 

Summit switch does nothing to tune the fuel injectors. A VAFC or VAFC-2 is an RPM switch and an air fuel ratio controller. The 2000 injectors flow more, so without a tune it runs pig rich on the 4th gen ECU. A side benefit of leaning the fuel is that the ignition timing is also slightly advanced.

 

Thats exactly what I needed to know. Thanks!

 

Why not Harlan? I say you get a V-afc2 so you can tune as well.