OK, for those of you who have done the DEK swap, I'm calling for your expertise. I've found an engine (23k, $500+150 shipped). Want to make sure that I have everything that I need.

Parts Needed
1. IACV Plate (4th gen IACV +00 TB) [Stephen Max]
2. RPM Switch (00VI working) [Summit Racing]
3. 5th gen clutch [DaveB]
4. Fidanza Flywheel [Group Deals]
5. SS Clutch Line [Group Deals]

Parts Swapped from DE to DEK
1. Coolant Log
2. EVAP System
3. All sensors

Modifications
1. Remove EGR
2. Rewire Injector clips
3. Mount EVAP Gallies
4. Plug 5th gen TB IACV Hole

Is there anything else that I'm missing??? Any pointers to help me out during the swap!!!

 

You can take off the fuel damper, the 4th gen has a filter in the engine bay that takes the place of it. Many have left it in so thats entirely up to you. You may want something to tune the air/fuel mix since the 00-01 injectors are slightly larger, again not a big deal but its worth looking into.

Removing the EGR will result in a constant CEL, so make sure that wont affect your inspections.

Also think about redoing the vacuum gallery. It will look like spaghetti at first, but is really only a few hoses tee'd off multiple times. At least become ver familar with it as it can be confusing.

 

is it possible to use the 4th gen injectors???

 

You can. You can send your lower manifold off to stephen max and have your lower manifold drilled to accomidate the upper 00VI.

Thats what I did, now I have an extra lower manifold. Let me know if you wanna buy it.

-matt

 

has it already been drilled or do i have to send it to be drilled

 

ok I have done 2 de-k swaps and I didnt do anything about a coolant log? What is that? Is it necessary?

The bigger injectors on the de-k with the stock 95 fuel settings in the stock 95 ecu - is this what is causing my backfire? because it is running rich because of the bigger injectors with my stock 95 ecu not used to them?

 

you just asked my next question. What problems would i have running larger injectors with the stock ECU.

as far as the coolant log goes, i might be wrong it might but just a sensor or something on the coolant log.

 

I am also looking into swapping my '97 de for a dek. I see that most people are doing away with the egr stuff when doing this swap. What are the advantages of doing this? If none, why don't people swap the 4th gen egr stuff to the dek? Just asking, because I would rather not get any cel's when I do my swap. Sorry for jacking your thread and possibly asking a stupid question, but any help would be much appreciated.

Is there anyone who would be interested in doing a how-to for the dek similar to the 3.5 swap in the all-motor stickies?

 

i wouldn't consider it jacking. hopefully this thread will consolidate, any question or problems that could be had with the DEK swap.

and as far as the EGR goes...
i think from what I read the that its just a pain in the @$$ trying to get the hoses hooked back up . (http://forums.maxima.org/showpost.ph...&postcount=17)

if you remove the EGR, but keep the sensors plugged in 95 ECU won't trip the cel, but the 96+ ECU's will(http://forums.maxima.org/showpost.ph...93&postcount=8)

 

Having larger injectors will result in a rich mix durring open loop. You will loose some power since the cumbustion chamber will be cooler and you'll waste some fuel. It could cause a back fire since there is extra fuel not being burned. In the long run it can ruin your cat, which is not cheap.

The 4th gen EGR does not bolt up to the 5th gen IM, so you would need to custom make something. May as well use the 5th gen tube since its pretty much ready to go.

The 4th gen has 2 coolant sensors, one wire for the gauge and a two wire for the ECU. If the 5th gen is different or not compatible then that would need to be changed. The 5th gen uses 2 thermostats to regulate the heads and block temps separately.

 

So, if I kept the 5th gen egr stuff instead of the 4th gen, I wouldn't get any cel's? I just don't understand how keeping the egr stuff could be that much more of a hassle.

 

Not sure but I think 5th gen EGR is electronic like the 99, so you cant just bolt it on to a 95-98. Youll need to use the guide tube off the 5th gen and keep the 4th gen mechanical EGR valve and back pressure transducer.

Some one can definetly correct me if im wrong.

 

ok how to fix this mixture? wbo2 and vafc2? or safc2 or vafc or safc? with any of the safc's an rpm switch is needed.

what I did was take the 5th gen EGR completely off. I kept the egr guide tube from the 5th gen. I then took the 4th gen EGR off of the de and bolted it up to the de-k with the 5th gen guide tube. The 5th gen egr is electronic I believe. the 4th gen egr is vaccuum opperated, the only way I know of hooking it up fully functionally is with the 4th gen tb. I was trying to get this worked out and asked my mechanic at nissan how it worked and using the 4th gen tb is the only way to go from what he said.



where is all this and what does it look like? I need to fix this coolant sensor/log thing because I have never addressed it before.

 

Its a Stock Lower manifold so you can get it drilled before doing the swap so you have it.

 

SAFC will do the trick, or maybe just an AFPR. A VAFC will control the VI activation through the VTEC stuff. If you dont dyno you will need a WB O2 for sure.



I dont think you need the 4th gen TB for the EGR at all. Its unrelated, at least for a 4th gen. The guide tubes are just after the TB, compleatly separate.


WHOOPS, mt B. There are only 2 coolant sensors! They are in the log near the upper rad hose, 1 is blue the other is black.

 

You keep your 5th gen coolant log. Everything from your 4th gen harness will plug in.

The only thing you will HAVE TO do is mount the Vaccum Gallies onto the 5th gen coolant log because there is no bolt locations on the 5th gen Coolant log to accomidate the 4th Gen Vac Gallies.

Youll see what im talking about when actually see it.

 

I have already completed my swap and I didnt do this to my knowlege..but im running fine. I have cel's but havent checked them. What are the vaccum gallies? where? what do they look like? if not hooked up is that bad?


ok so on the 4th gen tb, the reason for using is was because of the way the egr hooks up to it. the 5th gen doesnt have the right kind of nipple in the right spot for the egr hoses to connect to. this is just what he told me...