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View Full Version : s13>s14 maual trans swap

KasperSlide
10-04-2008, 06:49 PM
ok so i swap a manual s13 trans into a 95' auto s14. and as most know the speedo reads double the mph. so to rectify the problem i bought a s14 manual VSS. but it still is reading double the mph. soooooo..... anyone of you crazy kidz know what i can do. :x:
p.s. ive already searched and have pm'ed ppl that have had the same prob with no response nor were there post's answered.
Ben G
10-04-2008, 07:07 PM
did you get a manual speed sensor?
KasperSlide
10-04-2008, 07:40 PM
yep 86 bucks from the part store grrr...... anyone else
KasperSlide
10-05-2008, 11:15 AM
well damn guys i guess if i figure it out ill post for ne one that maybe have this problem in the future
issac
10-05-2008, 11:51 AM
I just completed the same swap about 2mos ago. The only thing That I can think of is the pinion gear on the vss. Did your vss come with this already? From what I know Is that the s14 vss into the s13 tranny needs minor modification to work. Is the speed sensor metal or plastic? How do you know for certain that you have an s14 vss?
KasperSlide
10-05-2008, 06:11 PM
its a metal sensor with a red plastic wheel. i had to put the old gear on the new vss. but ive been told that the gear only varied for wheels size. im not gunna b/s and say its the right vss cuz you never know what u get from the parts store but i bought a 95' manual vss......would it be possible that i need to buy a 95' auto vss.

im also runing the auto trans ecu
DreamN
10-05-2008, 06:22 PM
^ I think you got an s13 one. I believe the s14 has a plastic housing.
projectRDM
10-05-2008, 07:18 PM
^ I think you got an s13 one. I believe the s14 has a plastic housing.

Bingo. You should have searched.

Aluminum housing with long wire lead = S13
Black plastic housing with direct plug in = S14

There's no way to confuse them unless you're blind and have no fingers.
projectRDM
10-05-2008, 07:20 PM
I just completed the same swap about 2mos ago. The only thing That I can think of is the pinion gear on the vss. Did your vss come with this already? From what I know Is that the s14 vss into the s13 tranny needs minor modification to work. Is the speed sensor metal or plastic? How do you know for certain that you have an s14 vss?

This is incorrect. The sensors swap right in, either one, because the tail housing is the exact same from 89-98, on KA, SR, and CA.
KasperSlide
10-06-2008, 05:46 AM
yea so i got a aluminum one with a plug. ok well ill be going to the part store. thanks ill let you guys know what happens
issac
10-06-2008, 06:38 PM
I bought one from napa auto parts and it was the s13 one. Apparently their info is wrong their computer says that the 1995 m/t vss is the same as s13 (same part number). Be careful and don't get fooled again. I am trying to order the correct one right now. Good luck!
projectRDM
10-06-2008, 10:30 PM
FYI, I've scoured several online parts sites and called a few places just out of curiosity, no one makes an aftermarket replacement S14 VSS. They all show to carry one up to 1995 but list the S13 unit. After 1995 there's no application.

Dealer or salvage yard only part.
KasperSlide
10-09-2008, 10:13 AM
wow RDM i think thats one of the first times you didnt freak out on me and try to make me butt hurt. ill head to nissan
projectRDM
10-09-2008, 12:58 PM
wow RDM i think thats one of the first times you didnt freak out on me and try to make me butt hurt. ill head to nissan

Shall I go off on you then anyway?

Remember the new VSS at the dealer won't have the gear, it's a separate part.
WangonwWarrior
10-09-2008, 01:09 PM
Shall I go off on you then anyway?

Remember the new VSS at the dealer won't have the gear, it's a separate part.


And you know the dealer will charge out the ass, i think its around $140 but i cant remember.
aoiken3
10-09-2008, 01:13 PM
the way i made mine read the right speed was by changing my differential gearing and running really tall tires. this method is pretty getto but it works and gets u better gas mileage.
bigOdom1
10-09-2008, 01:20 PM
Shall I go off on you then anyway?

Remember the new VSS at the dealer won't have the gear, it's a separate part.

hahaha russ you are too much
issac
10-11-2008, 12:45 PM
Kasper. I just received mine last night and finally its the right one.Here's the part #'s
speed sensor 25010-71T00
pinion gear 32743-71T20
ring-lock 32744-71T00
If you need pics I can post them later.
MudRacer
10-17-2008, 09:41 PM
Anyone has a pic of the S14 Manual VSS? Ive been searching all over.
DreamN
10-17-2008, 10:03 PM
Had one lying around so here are some quick shots.

http://i11.photobucket.com/albums/a164/OneDeadLung/th_DSC00870.jpg (http://s11.photobucket.com/albums/a164/OneDeadLung/?action=view&current=DSC00870.jpg) http://i11.photobucket.com/albums/a164/OneDeadLung/th_DSC00871.jpg (http://s11.photobucket.com/albums/a164/OneDeadLung/?action=view&current=DSC00871.jpg) http://i11.photobucket.com/albums/a164/OneDeadLung/th_DSC00872.jpg (http://s11.photobucket.com/albums/a164/OneDeadLung/?action=view&current=DSC00872.jpg) http://i11.photobucket.com/albums/a164/OneDeadLung/th_DSC00873.jpg (http://s11.photobucket.com/albums/a164/OneDeadLung/?action=view&current=DSC00873.jpg)