FINALLY GOT MY S14 Kouki engine working in my S13!!! But have a problem.

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Silvia007
Posts: 1587
Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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Ok, so the car started, I took it for a spin, ran beautiful!! Had to do the wiring myself since a local shop gave up on it. Anyway, so I ran it for a while ran and idles perfect. One problem, I seem to have hooked the coolant temp sensor up correctly but I did got get any readings in my dash. I turned off the car and the car won't start. When I crank it I get spark (NGK iridiums gives off a beautiful bright white spark!! nice), I get fuel, but the engine just won't start. Could a bad coolant temp sensor cause a car not to startup when cold?? Oh I'll have pictures as soon as I fix this problem. Thanks guys!


DriftBandit
Posts: 157
Joined: Sun Oct 19, 2003 7:54 pm
Car: this is my 3rd 240sx

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Nice to see a S14 motor into a S13 body..... completed. Hopefully I will have mine done by mid next week. Have you checked to make sure you have power to your ECU or if you blew a fuse?

Oh and I just have one question, I couldnt figuer out how to run the fuel pump through the harness. Looks like I might have to have it on its own fused switch...How did you run yours??

Anyways good luck with your car.

-Jon

Silviasokudo
Posts: 2
Joined: Sat Sep 18, 2004 6:47 pm
Car: 95 240sx se

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Sorry. I don't have an answer to that one. You may want to make sure all your grounds are secure. That happened to me. I still had spark but of course no fuel. But, maybe you could help me. I've got a 95 240sx with the kouki sr20det. I understand your pain!!! But I can't even find a wiring diagram for the ECCS or at least an accurate whole one. I get little pieces here and there. I you have one and could send it to me that would help alot. Pretty much I've got everything important and have already had it turn over and run. But I can't find where to pin the front o2 sensor. I've also got a couple pin locations on the ECCS not filled which is normal of course. I'd still like to make sure that I'm not missing anything though. Any info would help and if you need any info yourself maybe I can help. Thanks either way.

Silvia007
Posts: 1587
Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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Ok, well it does seem to be the water temp sensor, Once the engine cooled, it started right up no problems and will stay running until turned off, at which, you have to wait till it cools.

Drift Bandit, is your S14 going into a S13 also? If so let me know, and I'll tell you what I did.

Silvia Sokudo, here's the diagram I used, seems to be pretty accurate, it's what I used to get my 98 SR to work.

http://www.spartacomputersyste...t.pdf

DriftBandit
Posts: 157
Joined: Sun Oct 19, 2003 7:54 pm
Car: this is my 3rd 240sx

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I had my Zenki S14 motor running strong in my 1995 240SX until about two weeks ago my car was totaled by some idiot who ran a red light, So I recently bought an 89 240sx and I am in the process of transfering the motor. So yes its going into an S13.

And is that pinout you posted for the Zenki or Kouki S14 motor???Thanks,-Jon

Silvia007
Posts: 1587
Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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I've done a ton of research and it seems the Kouki and the Zenki has similar pinouts although not 100% sure. Originally the pinout here is for a Zenki but I traced the sensor wires and they seem to match the Kouki also. So I used it to wire up my kouki. Just to make sure though, you may want to do a quick referece, if you go to Apexi's site and download their SAFC-II manual, look for the ECU for your car in there, then compare the pinouts that they have for that specific ECU with the one I posted. If they match up, you're good to go. By the way my ECU is a "WC" ecu. Your's may be a "WE". Not sure on how different they are.

Silvia007
Posts: 1587
Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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Ok, Problem FIXED, turns out the ECU has a water temp sensor and the dash gauge has it's own temp sensor. I spliced both the ecu and the dash gauge into the same wire which did not work too to well. Now my gauge sensor is out of whack suppose to be about 20 ohms of resistance to be in good working order and my multimeter says it's 300 ohms... man, now where in the heck am I gonna find that unit.

DriftBandit, all the fuel pump uses is a negative trigger from the ecu to fuel pump relay, since the fuel pump relay is located under the hood so all you need to do is connect the wire from PIN 18 from the ecu to the fuel pump relay attached to the S14 harness, you can clip all the wires from it off and tape up the connections. You then extend that wire to the S13 power plug under the hood, the wire you are looking for is a black wire with a pink stripe, yep, that's it, if you need anything else, I'll help in every way I can, I know how difficult it was when I had to do this with no leads.
Modified by Silvia007 at 9:18 PM 9/21/2004

DriftBandit
Posts: 157
Joined: Sun Oct 19, 2003 7:54 pm
Car: this is my 3rd 240sx

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Ok thanks alot, I will keep an eye out for the temp sensor problem too.

When I am done with my swap I am going to try to make a write up of all the wiring and other little stuff to make this swap work. There are too many people out there with the same swap who are stuck and not getting any help.

Hope all goes well with your car.

-Jon

Silvia007
Posts: 1587
Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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Man I wish I would of done a writeup. I was so sure that it wasn't going to work hahaha, but it works. I was so desperate to get my car working that I just went ahead and tried it myself. I was trembling when I was hooking up the wiring harness because the fear of it not starting was numbing.

DriftBandit
Posts: 157
Joined: Sun Oct 19, 2003 7:54 pm
Car: this is my 3rd 240sx

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Haha, I know what you mean, I had to do my S14 motor in my S14 car by myself but those wires colors kind of matched up.

Hopefully my car will be done in a few days, I will keep you updated on my progress.

-Jon

DriftBandit
Posts: 157
Joined: Sun Oct 19, 2003 7:54 pm
Car: this is my 3rd 240sx

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Hey, I got my motor running, However I dont have a tach signal, how did you run your tach?? Everything else seems to work, And I ran my fuel pump like you said and it worked perfect, Thanks. I havnt driven it around so I dont know how it runs yet.

Thanks for the help,-Jon

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popogto
Posts: 151
Joined: Fri May 14, 2004 5:55 am

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im trying to get s14 ka into an s13 chasis, distributor seems to be messed up. any help?

DriftBandit
Posts: 157
Joined: Sun Oct 19, 2003 7:54 pm
Car: this is my 3rd 240sx

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???, Check the KA24e & KA24DE Engine Talk section.

Silvia007
Posts: 1587
Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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Driftbandit, the tach is a way different color. If you look in that one PDF I posted, it'll have the tach output, I don't remember off hand what the color is. If you still can't find it, let me know, I'll go and look at it and let you know.

Silvia007
Posts: 1587
Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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popogto wrote:im trying to get s14 ka into an s13 chasis, distributor seems to be messed up. any help?
Hey, is it possible to be more specific? Is it not starting, is it not aligned right? Timming's off? Just knowing what kind of problems it's giving you would be great.

Silvia007
Posts: 1587
Joined: Thu Jul 25, 2002 6:04 am
Car: 93 Nissan 240SX SE Fastback

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One more thing Bandit, I mistyped my instructions on hooking up the fuel pump relay, I kept saying ECU relay when I ment fuel pump relay, hahaha must be pretty tired a couple days ago.

DriftBandit
Posts: 157
Joined: Sun Oct 19, 2003 7:54 pm
Car: this is my 3rd 240sx

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I fixed my tach problem, I had it wired up right but I was using the SOHC tach and I forgot that I have to us the DOHC tach. So I swaped the tachs and the problem was fixed. So now my motor runs perfect and I just have to do a few suspension things to get it on the road.

DriftBandit
Posts: 157
Joined: Sun Oct 19, 2003 7:54 pm
Car: this is my 3rd 240sx

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Silvia007, Can you go into a little more detail with what you did with the water temp sensor. My stock gauge is all out of wack, The needle is as far up as it can go when I turn my car on, Its obviously messed up. I think its whats making my car hesitate under acceleration too.

Any help would be greatly appricated.

-Jon

SR BEAST
Posts: 40
Joined: Wed Jan 07, 2004 7:53 am

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hi guys.....

I found a s14 sr20det too..and thinking of swapping it in my 94 s13 which has a s13 blacktop sr20det currently....so wanna ask u guyz...is it worth it ?? i mean will i feel a difference inbetween them "s14 sr vs s13 sr"? ? ?? Is everything the same..ie : engine mounts ..wiring it to the chassis..etc ???

thanx

deffe
Posts: 53
Joined: Tue Sep 16, 2003 9:40 am
Contact:

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Silvia007: Nice work sofar!

I would be forever greateful if you could help me out with the wirering. I only got this left to do but it is so hard that I fear that I might end up doing totaly wrong and destroying my ECU and engine.

Could you please write in detail how you wired it all?.. Perhaps write it a bit like a "howto/How I did it" thingy. I am sure many would find it very usefull and appreciate it. I am One for sure that would...

I have added you to my MSN, hope that was ok for you. I am desperate now

DriftBandit
Posts: 157
Joined: Sun Oct 19, 2003 7:54 pm
Car: this is my 3rd 240sx

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Hey Deffe,

I am working on my write up right now for the S14 motor into an s13 car, The wiring is pretty easy if you use the ECU pinout that silvia007 posted earlier on this page. There are two plugs that are by the fuse box in the s13 engine bay, The wires for these plugs need to be extended to under the dash where the s14 wiring plugs into the dash, not to the ecu. You can find the pinout for these plugs by the fuse box at http://www.heavythrottle.com under the wiring section.hope this helps a little. I will try to get the wire colors and where they go soon.

Oh and SR BEAST, stock for stock the S14 motor will be faster than the S13 motor. S14 has bb t28 turbo, VTC, and other minor things.But its said that the S13 motor has a better head design with the High port manifold which flows better than the S14 low port manifold, So the best motor really depends if you are going to keep your motor stock or you are going to spend some money, However through my experience they are both somewhat similar.

-Jon


Modified by DriftBandit at 9:27 AM 10/9/2004


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