Just when you thought another 5spd swap thread couln't be made..

[NemeGuero]

especially by someone who has been around for a while..
s14 ka24de auto converted to manual wiring HELP.
I'm stuck.
I know I can "wire" up all the manual transmission sensors straight to the ECU if I want to rewire everything. Problem is, I don't want to do that. I want it clean and OEMish. PLUS.. that doesn't include wiring a CPS sensor. and I need that.

So I finally swapped in an s14 manual trans instead of an s13 one.

I bought an S14 lower trans harness but 60% of the connectors don't fit on my car.

Let me elaborate:
I've broken up the lower harness in connection groups.

the front section that goes to the fuse box and battery
http://img341.imageshack.us/img341/5831/wiringtrouble003pc7.jpg
the green is a ground wire, the red goes to a terminal post on the fuse box, the yellow USED to be attached to my battery, and the blue I have no idea what they are for.

alternator wiring
http://img185.imageshack.us/img185/563/wiringtrouble004ie8.jpg
the yellow goes to oil pressure switch

starter wiring
http://img168.imageshack.us/img168/3391/wiringtrouble007ql2.jpg

plug that goes to ECU?? or connects to engine harness.. who cares

Then there are the trans sensors:
CPS, VSS, reverse lights, neutral pos, and 5th gear pos and rear 02.
http://img401.imageshack.us/img401/6086/wiringtrouble009ge6.jpg
I have 2 sensors with a connector like the one I circled and 1 with the other style. (not including the VSS, CPS or rear 02 -4wire)

Now the problem is that I bought a "s14 manual lower harness" so that I could just plug and play everything. But it doesn't seem to work that way. Maybe I have the wrong harness?

Problem #1:
http://img297.imageshack.us/img297/5416/wiringtrouble014ch8.jpg
WTF is this triangle plug?! These are the wires that should go near the fuse box as you can see by the 12V batt terminal, and that long skinny ground wire... and connectors that don't seem to fit anywhere. Are s14 manual vs auto fuse box connectors different?! See pic below for fuse box connections without triangles..

Problem #2:
what does the power wire going to the fuse box post do? and Why is there not one on my "s14 manual harness"?
http://img232.imageshack.us/img232/3093/wiringtrouble008tl9.jpg

Problem #3:
None of the alleged s14 transmission sensors plug in.
http://img86.imageshack.us/img86/8974/wiringtrouble013wp6.jpg
So here I got some clues..
the rear 02 plug is a 3 wire. OBD1. So I guess there is a difference in lower harnesses between OBD1 and OBD2. But the VSS has an automatic style connection. (the one that plugs on to the sensor versus plugging in near the starter.) and finally, none of the other transmission sensors have connectors to match the plug styles in the other picture up top.


SO WTF DO I DO?!

thanks.
-EmoNemoGuero-o

[Goldeneye9mm]

i'll be undermy car tomorrow. i have the s14 sr20det. you may have that harness. i'll get back to you.

[ManoNegra]

I've only used the auto harness with 5speed swaps for exactly those reasons Nemo, nothing matched.

[infinitexsound]

look at page EL196-EL202 harness layout , follow the schematic..
in the FSM...http://www.china-manufacturer-directory.com/picture/electrical-accessories.jpg
pull the colored crimp crap off
http://plawner.net/3/solder_pictures/solder.jpg
slip a heat shrink tube over the wire
and solder the female to the wire.. and heat shrink over the solder
http://www.screamandfly.com/home/hull_tech/wiring_6.6.2004/images/009.jpg
itll look like this but with a female....

and connect it to ur fuse box

finding a odb2 5spd harness is gonna take awhile.... might as well just spend some time and make it look decent, and get it done...

[S14DB]

Auto connectors:
http://img232.imageshack.us/img232/3093/wiringtrouble008tl9.jpg

This is a 95 OBD1 Lower Harness:
http://img86.imageshack.us/img86/8974/wiringtrouble013wp6.jpg

You need to track down a 97-98 Harness.

[NemeGuero]

fuuckk.. custom harness part 2.

is there another place to source signal wires for the reverse lights and nuetral pos and 5th gear thing OTHEr than the ECU? I hate splicing wires in over there...

[infinitexsound]

go to pick and pull, and locate some nissan odb2 cars, and jack the female plugs..... like i said...

[NemeGuero]

bleh.. aye, thats how I did my altima fan wiring. :)

[diomedes]

Problem #1:
http://img297.imageshack.us/img297/5416/wiringtrouble014ch8.jpg


I was just looking under my hood and I couldn't find where these plugs will plug into?? I followed the positive harness down and could not locate them. I'm going to have the same problem as will when I do my swap.

Good luck Guero

[NemeGuero]

Bah, its only like fifty wires. haha wtf

[S14DB]

http://img297.imageshack.us/img297/5416/wiringtrouble014ch8.jpg

8 Pin on the left is the MT body connector(5speed, Nutral, ect).
3 Pin is the Rear O2

[NemeGuero]

ghey, I need a 4 wire.

thanks mang :bigok:

[projectRDM]

Holy fuck. How many times do we need to discuss this.

For all the fools who will search later and find this:

A MANUAL LOWER HARNESS IS USELESS ON AN AUTO CHASSIS

Now, back to the original shit at hand. It does not matter how many manual lower harnesses you try and use and from which year, the chassis side of the harness is NOT prewired. Period. All the shit you hope to gain by using a manual harness doesn't exist. Why? Because the car is auto. There's no wiring for the neutral switch or 5th gear position switch like on a manual, because...........it's NOT a manual chassis. Seriously? Yes. The auto harness has all the connections needed for alternator, starter, oil pressure switch and you can hardwire the reverse lights if needed. If you want to keep your CEL off, you HAVE to run wiring inside for the remaining shit. The wiring you're hoping to gain is not found in the underhood or dash harnesses, nor is it in the ECU harness. There is no way around that. This whole thinking of plugging in a manual harness and 'magically' gaining things is absolutely fucking retarded. That's like saying you plugged an SR engine harness into your car, so now you have an SR. Wrong answer.

*If* you're slick enough, you can use existing wiring to connect the neutral and 5th gear stuff to the ECU without running them, but that involves cutting leads from the auto harness, tying them in at the ATC, then rewiring it at the ECU plug. At that point you're an hour more into it than you wanted. Running the wiring needed through the transmission tunnel or firewall takes minutes to do.

Lastly, the rear O2 sensor is a changeover for 97-98 models, it has nothing to do with OBD-I or OBD-II. The 95-96s use a 3wire, 97-98s use a 4wire.

[orion::S14]

Thank you, Russ.

Because I host that webpage with the basic wiring info, I get this question (via e-mail) ALL THE FUCKING TIME.

I tell people to keep it simple, and just use the auto wires. Nice and easy.

Yet I ALWAYS get people saying: "Well, I already bought the manual harness, so how do I make that work?"

Now, I'm going to refer them to here.

- Brian

[projectRDM]

Thank you, Russ.

Because I host that webpage with the basic wiring info, I get this question (via e-mail) ALL THE FUCKING TIME.

I tell people to keep it simple, and just use the auto wires. Nice and easy.

Yet I ALWAYS get people saying: "Well, I already bought the manual harness, so how do I make that work?"

Now, I'm going to refer them to here.

- Brian

Sadly, it won't help. I typed that in a drunken anger last night knowing even then it was pointless. No one reads anything these days, we all know that.

[NemeGuero]

All you had to say was: Yes Evan, the fuse box connections are different for auto and manual cars.

:)

I had already realized a custom wiring job was in order after making this thread.
But thanks. At least I know now.

[projectRDM]

All you had to say was: Yes Evan, the fuse box connections are different for auto and manual cars.

:)

I had already realized a custom wiring job was in order after making this thread.
But thanks. At least I know now.

Why? You already knew that by looking at them. Brian's writeup is the best one online for doing it exactly to key to keep the CEL off. Otherwise, nothing is needed from the automatic stuff except the reverse lights. If you wanted you could throw every bit of it away after unwrapping and splitting the harness up. The alternator, starter, OPS, and VSS are all separate after it's unwrapped.

[NemeGuero]

and CPS.

I wasn't sure if the problem was in the harness I had gotten or in the car itself.

Yah, I'm going to get some wiring stuff... I just had hoped there was an easier way. Fuck it.

[240cracker]

all that wiring makes me wanna go to sleep...
i suck at wiring

[S14DB]

I can't find the pinout on these connectors in the FSM. anyone help?

http://www.ka24development.com/cwilfert/electrical_wiring_harness_connectors.jpg

[s13 drifta]

Yeah I was going to try the same thing with my 5 speed swap by using the manual lower harness on my auto car, but I guess I have no other choice but to run the auto harness. I just thought I could leave the auto connectors on the side of fuse box disconnected and just hook up the 3 on the front side of the box because they all fit. Is there any way to make the manual lower harness work with an auto besides throwing in a manual body harness?

[NemeGuero]

maybe. But don't bother. Just make a harness and run the wires to the ECU. Its all there is.

[nep]

I can't find the pinout on these connectors in the FSM. anyone help?



http://img216.imageshack.us/img216/7238/iygza1.th.jpg (http://img216.imageshack.us/my.php?image=iygza1.jpg)

http://img229.imageshack.us/img229/7652/ihgbijcf7.th.jpg (http://img229.imageshack.us/my.php?image=ihgbijcf7.jpg)

from 96 fsm. that what you were looking for?

[S14DB]

http://img216.imageshack.us/img216/7238/iygza1.th.jpg (http://img216.imageshack.us/my.php?image=iygza1.jpg)

http://img229.imageshack.us/img229/7652/ihgbijcf7.th.jpg (http://img229.imageshack.us/my.php?image=ihgbijcf7.jpg)

from 96 fsm. that what you were looking for?

That gives the path of the harness.

The top one is the starter interlock. Only closed when in N or P
Second one is the revolution sensor for the TCU.
Third one is the one I need. This goes to the Gear selector with the starter interlock. My FSM says the Green and Red are for the Back up. But the one guys guide says black and green.
Fourth is the solenoid valves.

I found the Diagram. But it mentions the SMJ but not the connectors on the fuse box. Even though by tracing I know it has to go through those connectors.

http://img.photobucket.com/albums/v108/S14DB/240sx/Tranny/Wiring/BackUpFSM1.jpg
http://img.photobucket.com/albums/v108/S14DB/240sx/Tranny/Wiring/BackUpFSM2.jpg
http://img.photobucket.com/albums/v108/S14DB/240sx/Tranny/Wiring/BackUpFSM3.jpg

[NemeGuero]

I repinned the O2 connector to have the 4 wire wiring I was still using. This has the CPS wiring attached and it goes to that plug for the engine harness.

The rest is all wired up I'm only missing the male connectors for these guys in red:
http://img401.imageshack.us/img401/6086/wiringtrouble009ge6.jpg
**the ones that say 2X** (but they're not identical, they're mirrored images of each other.

[Goldeneye9mm]

i'm sure it won't help now you know buti checked all my trans wires and only like 2 looked like the ones you have there. good luck w/ the rest of you wireing adventure

[pbcstylez]

evan go get me altima fans

[s13 drifta]

Well I decided Im just going to try out the manual lower harness, I should be able to figure it out. Has anyone done it before? I am just wondering if I can leave the 3 connections on the back side of the fuse box unplugged and just plug in the 3 in the front like the manual fuse box is set up?

[NemeGuero]

did you read this thread?
NO. You can't. The fuse box connections don't match. You have to run wires to the ECU.

[pbcstylez]

evan what do u need to get this working ill pick it up from work AIM me

[NemeGuero]

Nothing anymore. I just need to figure out where I messed up in the wiring because I still have my CEL on.

[Rayne]

Russ's Post (http://www.zilvia.net/f/showpost.php?p=1914275&postcount=13) gives the reason why I have chosen to use manual harnesses in place of the stock auto harnesses with the five speed swap i am in the process of doing.

Any way back on topic. Among all of the five speed swap threads out there on the net, you seemingly brought up a decent topic.

[Dream240]

Not that this is much help but.....

I remember a home made webpage with pics for the electrical wiring on an S14 auto-to-manual swap. I even printed it out when i first found it for fear of it coming down eventually. I'm sure it was from a fellow Zilvian but not sure who.

I think the original link was from 240sx.org (their install page) waaaaaay back in the day (2002?)

But yeah the write talked about the "tunnel drilled route custom wiring" straight from the tranny connectors to the ECU and then splicing into the back of certain pins on the wiring connector backside to mate up to a manual ECU.

Sorry but after I did my first 5-speed swap I tossed all my how to's cause it became memory.

And right now I'm to lazy for specifics, sorry. :p

So basically I'm just posting to make myself feel somewhat smart.

But good luck though! :)

[NemeGuero]

http://www.ka24development.com/cwilfert/S14_tranny_swap_electrical.html#5th%20position%20s witch

this one?

I got it figured out. I think I'm going to lock this thread.