cant rev past 5k in ever gear!! '92 ka...help! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

j0nathanl3e · 02-28-2006, 01:27 PM

every time i go up to 5k rpm, theres a limiter that wont let me go beyond that point. it happens in every gear...the stock limiter is supposed to be only on 4th and 5th ( if im not mistaken)...but this is weird. earlier today, it was fine. this happened all of a sudden. during the whole day, it has been running fine and even now it's running good. so what could cause the limiter?

it's so annoying...ineed ur help fellas

btw, my car is all stock besides 2.5in piping.

ISTOTOSAO · 02-28-2006, 01:44 PM

Do you have a HUD? I had the same problem when my HUD didn't work it wouldn't rev. Just a thought.

j0nathanl3e · 02-28-2006, 01:53 PM

i dont have a HUD anymore. it failed ages ago...so i scrapped it and got an analog one. i like them better.

ISTOTOSAO · 02-28-2006, 01:59 PM

Sorry then. I hope someone can help you better than I did.

S14Kouki228 · 02-28-2006, 03:52 PM

Hey whats up my car did the same but mine did it when i would even stay in neutral and rev it up.I use to bounce the rev limiter at 6900 and one day it started bouncing at like 5K even.I dont kno much about ka's but do you think it could be a Tps?I highly doubt that could be it or even maybe it could be the computer as my older brothwer was telling me.Look into it But I drove mine for months like that so im pretty sure it wont destroy your car just go easy on it.Cuz if you keep bouncing that limiter even though itis only at 5K u can cause some valve damage even bearing problems...good luck

S14Kouki228 · 02-28-2006, 03:56 PM

hey u kno what come to thinkl of it how old is your distributor? i kno it sounds dumb but my brothers integra did the same thing.i kno nissan - integra two diff worlds but cars are basically built the same far between.If u have a bad rotor or sumthing in the distributor it might be screwing up the readings on firing.Check into timing to.One guy told me that if your crank bearing is going up that it screws your timing up but I dont kno if this is true.

j0nathanl3e · 02-28-2006, 05:17 PM

S14Kouki228 - i have a feeling it might be the tps...i know its not my ecu...but im still not sure. im gonna look into the timing and especially the distributor. mines getting pretty old now. my motors at like around 75k miles. maybe its time to replace some things.

btw my motor bounces at 5k in neutral as well....

orion::S14 · 02-28-2006, 07:10 PM

Try the 5th gear switch on the trans...if the ECU always thinks your in 5th, it limits the revs to 5000 as a backup speed limiter.

Unplug it, see if the car will rev higher.

- Brian

d r i f t swift · 02-28-2006, 07:16 PM

my car just started having this problem also.. i dont know if its the exact same problem but kinda sounds like it.. does yours bounce off the 5k mark? or like go down slow and back up? which plug is the 5th gear switch?

j0nathanl3e · 02-28-2006, 11:09 PM

orion::S14 - where is the switch..which one is it? id really love to give it a try instead of leaving it at a shop for $$$. i remember the day that i was having the problem, earlier i just ran my tranny through the gears at a dead stop holding the clutch down. i just wanted to see which gears were sticky (it was really codl) and i remember going in and out of 5th a few times...couple times something didnt feel right. could that have caused anything?

d r i f t swift - when i bounce off the limiter...its bouncing fast..nothing slow about it.

thanks for the input fellas

Arsenal of Glory · 03-01-2006, 12:37 AM

get underneath your car and check for the 5th gear (OD) position switch. There are 3 switches on the tranny: Reverse Lamp Switch, 5th Gear Switch, Neutral Position switch in that order starting from the engine side. The 5th gear switch is the middle switch and is on the tranny side, NOT the bellhousing one. Pull that switch out and test for a bad switch. If its not a bad switch then make sure your neutral position switch, reverse lamp, and 5th gear switch are not plugged in the wrong order. IIRC the 5th gear switch and the neutral position switch have the SAME harness plug, the Reverse lamp harness is DIFFERENT, but the actual switches are identical, just one of the three harness is different. If your 5th gear switch is bad you can buy a new one at the dealership ($35), it will be named the same as the Neutral Position switch, same part #s

d r i f t swift · 03-01-2006, 12:39 AM

yeah i was talking about the speed limiter. i dont know about yours but when i hit 115. the car will cut out for a couple seconds until it slows down and then pick back up. which is what i meant. when you hit the rev limiter yeah the needle will bounce off. but yeah my problem is more like the speed limiter problem..

j0nathanl3e · 03-01-2006, 04:22 PM

Arsenal of Glory - thanks for the tip! im gona get under my car and see if that's the issue as soon as i can. kudos

j0nathanl3e · 03-05-2006, 10:18 PM

the limit is gone!! just all of a sudden it went away...but prior to that, i resetted the ecu, checked my 5th gear switch (it was fine), and started shifting at 2500ish. what a weird thing to happen..im just glas its gone now. thanks for the help fellas. zilvia.net is the place to be

02-28-2006, 01:27 PM	#1
j0nathanl3e Join Date: Jan 2006 Location: seattle Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	cant rev past 5k in ever gear!! '92 ka...help! every time i go up to 5k rpm, theres a limiter that wont let me go beyond that point. it happens in every gear...the stock limiter is supposed to be only on 4th and 5th ( if im not mistaken)...but this is weird. earlier today, it was fine. this happened all of a sudden. during the whole day, it has been running fine and even now it's running good. so what could cause the limiter? it's so annoying...ineed ur help fellas btw, my car is all stock besides 2.5in piping.

02-28-2006, 01:44 PM	#2
ISTOTOSAO Zilvia Junkie Join Date: Jan 2003 Location: SB Mts, CA Age: 43 Posts: 546 Trader Rating: (6) Feedback Score: 6 reviews	Do you have a HUD? I had the same problem when my HUD didn't work it wouldn't rev. Just a thought. __________________ Steven- "You don't know me, but I am better than you."

02-28-2006, 01:59 PM	#4
ISTOTOSAO Zilvia Junkie Join Date: Jan 2003 Location: SB Mts, CA Age: 43 Posts: 546 Trader Rating: (6) Feedback Score: 6 reviews	Sorry then. I hope someone can help you better than I did. __________________ Steven- "You don't know me, but I am better than you."

02-28-2006, 07:10 PM	#8
orion::S14 Nissanaholic! Join Date: May 2003 Location: Orange Park, FL Posts: 1,666 Trader Rating: (0) Feedback Score: 0 reviews	Try the 5th gear switch on the trans...if the ECU always thinks your in 5th, it limits the revs to 5000 as a backup speed limiter. Unplug it, see if the car will rev higher. - Brian __________________ www.KA24DEvelopment.com

02-28-2006, 07:16 PM	#9
d r i f t swift Zilvia Junkie Join Date: Jan 2004 Location: macramento Posts: 380 Trader Rating: (0) Feedback Score: 0 reviews	my car just started having this problem also.. i dont know if its the exact same problem but kinda sounds like it.. does yours bounce off the 5k mark? or like go down slow and back up? which plug is the 5th gear switch? __________________ rip bobby.. you will be missed..

02-28-2006, 01:53 PM	#3
j0nathanl3e Join Date: Jan 2006 Location: seattle Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	i dont have a HUD anymore. it failed ages ago...so i scrapped it and got an analog one. i like them better.

02-28-2006, 03:52 PM	#5
S14Kouki228 Join Date: Feb 2006 Location: Baltimore Md Posts: 21 Trader Rating: (0) Feedback Score: 0 reviews	Hey whats up my car did the same but mine did it when i would even stay in neutral and rev it up.I use to bounce the rev limiter at 6900 and one day it started bouncing at like 5K even.I dont kno much about ka's but do you think it could be a Tps?I highly doubt that could be it or even maybe it could be the computer as my older brothwer was telling me.Look into it But I drove mine for months like that so im pretty sure it wont destroy your car just go easy on it.Cuz if you keep bouncing that limiter even though itis only at 5K u can cause some valve damage even bearing problems...good luck

02-28-2006, 03:56 PM	#6
S14Kouki228 Join Date: Feb 2006 Location: Baltimore Md Posts: 21 Trader Rating: (0) Feedback Score: 0 reviews	hey u kno what come to thinkl of it how old is your distributor? i kno it sounds dumb but my brothers integra did the same thing.i kno nissan - integra two diff worlds but cars are basically built the same far between.If u have a bad rotor or sumthing in the distributor it might be screwing up the readings on firing.Check into timing to.One guy told me that if your crank bearing is going up that it screws your timing up but I dont kno if this is true.

02-28-2006, 05:17 PM	#7
j0nathanl3e Join Date: Jan 2006 Location: seattle Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	S14Kouki228 - i have a feeling it might be the tps...i know its not my ecu...but im still not sure. im gonna look into the timing and especially the distributor. mines getting pretty old now. my motors at like around 75k miles. maybe its time to replace some things. btw my motor bounces at 5k in neutral as well....

02-28-2006, 11:09 PM	#10
j0nathanl3e Join Date: Jan 2006 Location: seattle Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	orion::S14 - where is the switch..which one is it? id really love to give it a try instead of leaving it at a shop for $$$. i remember the day that i was having the problem, earlier i just ran my tranny through the gears at a dead stop holding the clutch down. i just wanted to see which gears were sticky (it was really codl) and i remember going in and out of 5th a few times...couple times something didnt feel right. could that have caused anything? d r i f t swift - when i bounce off the limiter...its bouncing fast..nothing slow about it. thanks for the input fellas

03-01-2006, 12:37 AM	#11
Arsenal of Glory Zilvia Member Join Date: Sep 2005 Location: Petoria Posts: 177 Trader Rating: (0) Feedback Score: 0 reviews	get underneath your car and check for the 5th gear (OD) position switch. There are 3 switches on the tranny: Reverse Lamp Switch, 5th Gear Switch, Neutral Position switch in that order starting from the engine side. The 5th gear switch is the middle switch and is on the tranny side, NOT the bellhousing one. Pull that switch out and test for a bad switch. If its not a bad switch then make sure your neutral position switch, reverse lamp, and 5th gear switch are not plugged in the wrong order. IIRC the 5th gear switch and the neutral position switch have the SAME harness plug, the Reverse lamp harness is DIFFERENT, but the actual switches are identical, just one of the three harness is different. If your 5th gear switch is bad you can buy a new one at the dealership ($35), it will be named the same as the Neutral Position switch, same part #s

03-01-2006, 12:39 AM	#12
d r i f t swift Zilvia Junkie Join Date: Jan 2004 Location: macramento Posts: 380 Trader Rating: (0) Feedback Score: 0 reviews	yeah i was talking about the speed limiter. i dont know about yours but when i hit 115. the car will cut out for a couple seconds until it slows down and then pick back up. which is what i meant. when you hit the rev limiter yeah the needle will bounce off. but yeah my problem is more like the speed limiter problem.. __________________ rip bobby.. you will be missed..

03-01-2006, 04:22 PM	#13
j0nathanl3e Join Date: Jan 2006 Location: seattle Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	Arsenal of Glory - thanks for the tip! im gona get under my car and see if that's the issue as soon as i can. kudos

03-05-2006, 10:18 PM	#14
j0nathanl3e Join Date: Jan 2006 Location: seattle Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	the limit is gone!! just all of a sudden it went away...but prior to that, i resetted the ecu, checked my 5th gear switch (it was fine), and started shifting at 2500ish. what a weird thing to happen..im just glas its gone now. thanks for the help fellas. zilvia.net is the place to be