Removing speed limiter on 93 KA24DET

Post by **PencilShavings** » Sun Mar 26, 2006 5:44 pm

ka24boos13t,dont know if you saw this yet, but check it out...(i think its only about 20min from you)

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Post by **nwdrfter** » Mon May 01, 2006 4:30 pm

dang i'm hella confused here, but i guess i'm gonna go for the yellow/green wire on my 89 249 swapped out to a 93 ka24de. hope it works. still unsure as to which one(s) of the four on the tranny i gotta take apart. any help?

Post by **side waz** » Mon May 01, 2006 4:39 pm

Hey man what's up.

Yep, go ahead and snip that wire and the speed limiter is gone. Your speedo will still work perfectly as well.

Now as far as which tranny sensor's to un-clip, well you know how there's two round shapped ones and there's two more rectangular shaped ones? Well I un-cliped the rectangle shapped ones and that removed the rev limiter and again, the both the tach and speedo gauges worked just fine.

Hope that helps.

Post by **Kittychubbs** » Fri Jun 30, 2006 8:38 am

hey bro .so u did urs already and worked! good jobmay u give me a hand and correct me if am wrong.

so i go cut yellowgreen #32 from ecu where is the ecu located kick panel?-------------------------------------------------------------------------------------and then go under the car n disconnect the 2 "squared plugs" and thats that!??!?!

or do i do the to middle ones 2 n 3 ?? one round one squared?

thank u alot man!

Post by **side waz** » Fri Jun 30, 2006 11:41 am

Kittychubbs wrote:hey bro .so u did urs already and worked! good jobmay u give me a hand and correct me if am wrong.

so i go cut yellowgreen #32 from ecu where is the ecu located kick panel?-------------------------------------------------------------------------------------and then go under the car n disconnect the 2 "squared plugs" and thats that!??!?!

or do i do the to middle ones 2 n 3 ?? one round one squared?

thank u alot man!

Yep thats all there is to it man. Snip the wire, ECU is in the passenger side panel, unclip the squared plugs, tape them up properly and bingo..... NO SPEED LIMITER or REV LIMITER!

Post by **Kittychubbs** » Fri Jun 30, 2006 3:43 pm

hey man so i unpluged the squared (ish) ones the clip its on the side.and now im gunna go cut the yellow with green stripe cable from the ecu here goes nothing hope it works!!!

thanx Bruce!
Modified by Kittychubbs at 8:36 PM 6/30/2006

Post by **Kittychubbs** » Fri Jun 30, 2006 5:48 pm

okay i did everything 1st thing yes all speed/rpm/gas gauges work!!

BUT

I notice the engine gets a bit loudder thatn before at around 5500 rpm when racing it and yes it went over 7 k rpm

but is that safe with stock internals. i mean i dont wunna blow the engine up lol

and it uses more gas than usual so i say mpg did go down in my case a bit

i havent yet taken it to see if the governor its gone well i hope so, i hate it.hahaha

the rev in redline well kinda got me a bit nervious it seems the engine forces itself a bit more when it goes in the redline is that normal??

correct me if Im wrong I guess u need the NO REV limit so u can take full advantage of the NO Governor trick. cuz if it had rev limit it would bounce off n wouldnt let u go faster when u got to 55k rpm in 5th gear.right? maybe? lol
Modified by Kittychubbs at 9:22 PM 6/30/2006

Post by **Kittychubbs** » Sat Jul 01, 2006 3:37 am

okay i did everything 1st thing yes all speed/rpm/gas gauges work!!

BUT

I notice the engine gets a bit loudder thatn before at around 5500 rpm when racing it and yes it went over 7 k rpm

but is that safe with stock internals. i mean i dont wunna blow the engine up lol

and it uses more gas than usual so i say mpg did go down in my case a bit

i havent yet taken it to see if the governor its gone well i hope so, i hate it.hahaha

the rev in redline well kinda got me a bit nervious it seems the engine forces itself a bit more when it goes in the redline is that normal?? what its a new rev u guys recommend 7k even?7500K?

or just the normal 6ish k before redline ? ( it seems the no rev limit its more of a backup like 500 more over the line to be safe.

Post by **240sxs1377** » Sat Jul 01, 2006 9:44 pm

so what speed would you be at 6800 rpms in 5th gear?

Post by **Kittychubbs** » Wed Jul 05, 2006 9:37 pm

i wonder hummmwell guys it works!! no top limiter since yesterday i tried it, n no more Governor woot woot!!!

Post by **blindboy240** » Sat Sep 30, 2006 9:04 am

ok so i have some problems , ( i have a 89 240 coupe SOHC )first off i cut the yellow/green wire in the 32 pin.. i thought then i went to test it and i still hit my speed limiter ....

than after that i crimped that wire back together and went to do it the hard way , i spliced into the wire , made a switch , disconnecter the tranny sensors , and wraped everything up . than i went to test it and i still hit it ! even after i flipped the switch .... so i came home again and i dont know what i should do ...any suggestions?

Post by **RPSilvia** » Thu Oct 05, 2006 9:19 am

has anyone tried cutting the tach signal to the ecu to see if that removes the rev limiter? since cutting the speed signal to the ecu removes the speed limiter shouldnt that work the same for the tach.

Post by **working4aS13** » Sat Oct 14, 2006 10:36 pm

From my own personal experience (5 speed swap didn't swap the ECU) I can say I don't have a rev limiter or speed limiter. The lack of a rev limiter worries me on wet asphalt roads.

Post by **Diggity240sx** » Tue Oct 17, 2006 7:09 pm

Hey guys I know this is an older post but I am hoping someone will notice. I did a lil bit different then the instructions. I took yellow wire with green stripe from ecu..pin 32....and I made a switch out of it. Kind of a cautionary route in case things get sticky later on down the line with anybody claiming I was going a certain speed. Anyway it is a well hidden switch.

So my question was if done properly the neutral rev limit still be in-tact right. I didnt really have a place where I can test the speeds required to answer my question. Just curious cause the neutral rev limit shouldnt be affected.

Post by **nissan_blood** » Tue Oct 17, 2006 7:24 pm

Will cutting #32 and removing speed sensors work on s14 also?

Post by **Acecool** » Wed Oct 18, 2006 6:47 am

Will this work on an 89 KA24E 240SX?

I am thinking of snipping both of the wires, and putting two switches for the wires on the passenger kick wall..

Would you need to unhook the sensors on the transmission aswell?

Josh

Post by **Diggity240sx** » Wed Oct 18, 2006 2:49 pm

As far as the 89 I think it is the same pin but check the pinouts for the ecu and yes to remove the rev limits you either need to disconnect the tranny sensors for those gears. It is pretty simple to figure out the sensors cause once you unplug one all you have to do is get in your car and place your car in 4th with the clutch pushed in and revv up to 6200rpm same with 5th. If it goes to 6200 then you know you have the right ones.

Post by **Diggity240sx** » Wed Oct 18, 2006 2:54 pm

The S14 again check your pinouts you can find them here. I found them in Excel format but there might more lingering around. I think stated somewhere that the wire is yellow with a green stripe and that is on S14 also. Not sure but check ECU pinout. Oh and my top speed limiter or governer that kicks ya off around 112 or something....I have a switch inside the glove box. One of those little switches and its black. I put it in the top right corner of the glove box....very hard to find and my glove box still locks.

Post by **jimmysco** » Wed Oct 18, 2006 3:40 pm

I switch my 91 240sx ECU(manual tranny) for an Automatic ECU and it does the job, it does not cut off. I usually only read the post this is my first time posting something. I have a 240sx 91 STS turbo set up ready for the final settings hopefully it will up and running next week.

Post by **Acecool** » Thu Oct 19, 2006 10:05 pm

I have an auto :-(

Post by **KA24DETDRIFTER** » Sat Oct 21, 2006 12:31 pm

Hey i want to remove the limiter on my 1993 Nissan 240SX fastback but i dont know if i can.Its automatic.Please reply and tell me if i can.I've only got a magnaflow catalytic converter,2 custom made intakes,1 python air mass meter,NGK Iridium Spark Plugs,Nology Spark Plug wires, and an ace turbine muffler 3.5".thanks

Post by **KA24DETDRIFTER** » Sun Oct 22, 2006 2:31 pm

Hey i wanted to kno if u can remove the top speed limiter in an automatic 1993 240SX fastback. Thanx

Post by **~4N~** » Tue Nov 14, 2006 10:04 pm

KA24DETDRIFTER wrote:Hey i wanted to kno if u can remove the top speed limiter in an automatic 1993 240SX fastback. Thanx

If your car is an auto, then it shouldn't have the limiter.

Can anyone please tell me if S13 and S14 auto ECU's are interchangeable?Thanks for any info.

Post by **BlackHat** » Wed Nov 15, 2006 9:22 am

babowc wrote:ooohokie i guess ill be changing to the auto.. never knew 240sxs got this kind of.. not-so-great gas mileage

Most stock tunes out there are very conservative. If you were to get a standalone and tune it right you'd get good gas mileage... You also wouldn't have to worry about the speed limiter

I know that's a really old post, but thought someone should throw that in. Also, someone mentioned killing the tach signal... They weren't talking about the CAS signal were they? (from the dizzy, not the late 240 tranny CAS) That sounds like it'd be a really bad thing.

Post by **zanilth** » Tue Feb 20, 2007 1:26 pm

Alright, I have a s13 and removed the limiter/governor....Just cut pin wire 32, and pulled the two middle plugs. Bingo.

My question is, is it the same process for the S14? Trying to get one, hopefully will have it in a few weeks. Thats the first thing thats gotta go lol.

Post by **Kittychubbs** » Tue Feb 20, 2007 6:35 pm

should be.I did the same thing u did Snip 32 n unplugged round plugs It worked before no prob, BUT my governor kicked in yesterday wut could of happened??gunna check the plugs under the car tomo.

Post by **zanilth** » Wed Feb 21, 2007 4:25 am

I think one of them is a round plug, one is square....its been a while since I was under there, but I looked at the diagrams linked to earlier in the post. It is the two middle ones in a sequence of 1 2 3 4. 2 and 3 get pulled, 1 and 4 stay. Never hit the limit again.

Only thing is if you don't pay attention to your tach, prolly not the best thing to do...not paying attention and you will be pinging redline....definitely not good.

Post by **Kittychubbs** » Wed Feb 21, 2007 8:05 am

thats very true thanx for ur help!

Post by **russianpimp15** » Mon May 21, 2007 5:29 pm

hey does anyone actually know what controls ur revlimiter cuz my old two forty didnt hit limiter till 8000 rpms and my new ones hits it at about 7200rpm and have no idia why

SloS13 wrote:I can't seem to find a straight answer on removing the speed limiter. My car is cutting off at 107mph and I'm going to the track tonite.

Do I have to unplug the sensors from the trans, or just put a switch on the VSS to ECU wire?

Post by **russianpimp15** » Mon May 21, 2007 5:35 pm

hey does anyone know hot to actually eliminate the revlimiter completely and what controls ur rev limiter ? i had a 240 before and it red lined at 8000 rpms and the one i have no redlines at 7200 which is weird and i dont understand it

Removing speed limiter on 93 KA24DET

Re: (ka24boos13t)

Re: cutting wires?

Re: cutting wires? (nwdrfter)

Re: cutting wires? (side waz)

Re: cutting wires? (Kittychubbs)

Re: cutting wires? (side waz)

Re: (Kittychubbs)

Re: Removing speed limiter on 93 KA24DET (SloS13)

Re: (Mustangs_Suck)

Re: Removing speed limiter on 93 KA24DET (SloS13)

Re: (nissan_blood)

Re: Removing speed limiter on 93 KA24DET (Acecool)

Re: Removing speed limiter on 93 KA24DET (Diggity240sx)

Re: Removing speed limiter on 93 KA24DET (jimmysco)

Re: (locolou)

Re: Removing speed limiter on 93 KA24DET (jimmysco)

Re: Removing speed limiter on 93 KA24DET (KA24DETDRIFTER)

Re: (babowc)

Re: (BlackHat)

Re: (zanilth)

Re: (Kittychubbs)

Re: Removing speed limiter on 93 KA24DET (SloS13)

Re: Removing speed limiter on 93 KA24DET (SloS13)

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