240sx automatic to manual transmission conversion s13 and s14

[Rosenrot]

hey, im in the process of swaping mine now. im almost done and i am also using auto ecu. as far as problems go, the only one ive realy heard about is some problems cold starting. i live in North Idaho, so it gets cold as balls up here, but we get so much snow i wont be driving it anyway, so im not too concerned. i am not sure as far as the rev limiter. but i do have a question for you. im to the point of wiring my ecu and i am doing the neutral position switch. now i know i connect the green wire from my switch to the red wire on the ecu. my question is, do i just tap it in? or do i cut it? and if i cut it, wich red wire do i connect it too, the one coming from the ECU plug, or the one that goes into the rest of the car?. and my second question is, (sence i dont have the original transmission harness, im just hard wiring everything) both wires on the sencor are the same color. what are the conciquences for connecting the ECU and ground to the wrong wires? or does it not matter?

[locoluna825]

what kind of car... s13,? s14? year maybe would help

[Rosenrot]

haha yea that probably would help a bit. its a 95 S14 SE

[240sxblood21]

hi i need to find 4th an 5th gear senors or do i need them at all

[JDS Performance]

hi i need to find 4th an 5th gear senors or do i need them at all

You dont have to have them but I can get them for you for around $60.00 shippedLMK - [email protected]

[whaaaaaadahhh]

hey. your speed sensor was too fat for the manual transmission right? howd u fix it?

[JDS Performance]

hey. your speed sensor was too fat for the manual transmission right? howd u fix it?

used a 5 speed one - auto's barrel is too fat

[Voota]

it's good,,i like it.

[safin]

can I use an S13 SR transmission with a s14 KA?

[idriz]

i searched but couldn't find a lot of info on the wiring , i have a 90 5 spd sohc i want to swap into a 90 sohc auto , do i need to change out the bottom harness,are the manual and auto harnesses the same? thanks

[JDS Performance]

can I use an S13 SR transmission with a s14 KA?

Yes but you will have to swap the bellhousings and the sensors.

[JDS Performance]

i searched but couldn't find a lot of info on the wiring , i have a 90 5 spd sohc i want to swap into a 90 sohc auto , do i need to change out the bottom harness,are the manual and auto harnesses the same? thanks

No they are not the same but you will need to use the auto transmission harness and use the connectors off the 5 speed transmission harness - or any typ connector really but you will need both connectors.All you need is the reverse sensor and the neutral sensor.

[simpsonjohn5]

I'm new to this site

SimpsonjohnBMW Parts

[JDS Performance]

This is what you guys need and why I made it - to help you:

5 SPEED SWAP DVDhttp://www.240sxtechdvds.org/5SpeedSwapDVD.html

[news14fan]

hello sir i am new to the s14 scene and i was wondering if i can get some help thinking about doing a 5sd swap n wanted to find out what are all the parts needed to complete it

[news14fan]

cool beans

[Kevin S14]

I just picked up a '95 240sx, and the previous owner already did a 5 speed swap but did not do any of the wiring for the speed sensor or the reverse light switch. Does anyone have a schematic for those two circuits so I can figure out which wires to tap into to make those two sensors work? the previous owner hacked up the wiring in my car so bad that none of the car's connectors are there, and the connectors for the sensors were just cut off leaving about 2" of wire out of the sensors.

[JDS Performance]

I just picked up a '95 240sx, and the previous owner already did a 5 speed swap but did not do any of the wiring for the speed sensor or the reverse light switch. Does anyone have a schematic for those two circuits so I can figure out which wires to tap into to make those two sensors work? the previous owner hacked up the wiring in my car so bad that none of the car's connectors are there, and the connectors for the sensors were just cut off leaving about 2" of wire out of the sensors.

there is no mod to the speed sensor - you can download free factory service manuals from my website in the FSM section - http://www.240SXTECHDVDS.org

[Kevin S14]

Cool, thanks for the info!

[rsagen]

Hey how much would an s13 full manual transmission swap cost on a 1989 240sx?

it depends on what kinda deal you get.. I got everything but the drive shaft for 100 bucks. I just gotta install it. and really, all the info on the net, it cant be that dam hard.

[JDS Performance]

it depends on what kinda deal you get.. I got everything but the drive shaft for 100 bucks. I just gotta install it. and really, all the info on the net, it cant be that dam hard.

there is a good bit of info not on the net - alot of things you could run into etc... what will work what will not etc...

[nightkid86]

Hey, just signed onto Nico for the first time in like a year. Thanks for answering everyone's questions JDS.

[JDS Performance]

For all you guys/girls wanting to know.The difference between auto and 5 speed flywheels bolts



No problem Reed!

[brizanden]

got an interesting question hopefully someone can help.i need help gettin a auto body room harness to work with a manual car. everything plugs up but the transmission sensor as the manual transmission plug is a 3prong and the auto is a 2prong. also the fact that i dont have any of the top four plugs for the auto crapped plugged into anything will that cause a problem?

[JDS Performance]

got an interesting question hopefully someone can help.i need help gettin a auto body room harness to work with a manual car. everything plugs up but the transmission sensor as the manual transmission plug is a 3prong and the auto is a 2prong. also the fact that i dont have any of the top four plugs for the auto crapped plugged into anything will that cause a problem?

Are you talking about the interior harness or the engine bay harness (motor/transmission)

Also why would you use an auto harness on a 5 speed car? If its already 5 speed you shouldnt need anything from an auto...

Little more info would be great.

[brizanden]

the harness that runs from the inside to the lights including the fuse box.mine got burnt so i got another one just realized its auto. so i dont have the four plugs that run up to the fuse box. and the bottom plug that goes to the transmission harness is a 2 prong not a 3. oh and its a 97 both harness are just one is auto one manual.edit circled the differences in some picsmanual/ currentauto
Modified by brizanden at 10:34 PM 4/4/2010

[JDS Performance]

If you have a 5 speed car and an auto engine/transmission harness - its not worth the trouble/time to get it to work.

My buddy has a 96' 5 speed (EFI) engine harness (no transmission harness) for $135.00 shippedIf you need the 5 speed fuse box too (engine bay) - $75.00 shipped with harnessYou can get a S14 5 speed transmission harness online used for less than $75.00

[brizanden]

wait its not the engine or transmission harness. its the room body harness. which is the one that runs up all with light clips. my transmission harness is fine. what if i get a auto transmission harness to plug into the auto main harness. then just do the things u need to swap it for a manual transmission.

[JDS Performance]

wait its not the engine or transmission harness. its the room body harness. which is the one that runs up all with light clips. my transmission harness is fine. what if i get a auto transmission harness to plug into the auto main harness. then just do the things u need to swap it for a manual transmission.

Give it a try - should work - I have a s14 auto transmission harness - $60.00 shipped - [email protected] < Paypal

[rsagen]

there is really nothing to this swap. I did an s13 to a s13 and it was cake. All i pluged in was the speed sensor. no backup lights yet. but my cruise and everything works just fine.

the car rips without the auto