Today while driving to work, following happened on 3 occassions.

I was going 50-60 miles an hour on the road when a red light or stop sign approaches or I have to take a turn. I slow down by pressing brake pedal and pushing in the clutch which normally would bring the rpm to about 1k and than I will eventually take it out of gear and go to first gear or whatever. But when I am slowing down to turn or slowing down, upon depressing the clutch pedal, the rpms go all the way to 0 and the car just stalls. Everything locks up, steering wheel and all. I can start the car right back up without any problems. It does not have any trouble starting or when its going.

Before if the car has been driven for a bit and I depress the clutch when slowing down, rpms will go to 500rpms and than once I stop or slow down even more, eventually it will go up about 700-800rpms and idle fine, If AC is on it will be 900-1k rpms.

But for some reason, back to back three times when I slowed down by braking and pressing the clutch, it went down to almost 0 and stalled instead of its normal behavior to go to about 500rpms and than bump up to 700-800rpms…..

I checked under the hood for the basics. All lines seem to be fine, nothing is disconnected or leaking from visual inspection. All fluids are full as well.

Anyone else had this problem, any suggestions?

93 240sx coupe with 100% stock KA24DE

Could it be clutch related? Or vaccum lines not connected somewhere?
I do have a FSM, I will look into that as soon as I get home after work. Anything I should look and check for………thanks for your help…
Thanks
RINKU

 

my maf meter sensor plug somehow came off the ther day and it did the same thing , but it wouldnt go past 2k in a ny gear, runs fine now tho>>>>hope u get it fixed

jason

 

I just went to chekc the maf plug......ITs totally fine, not loose or disconnected or anything similar........

checked on the ground for any kind of fluid leaks.......and there's nothing on the ground either.....

RINKU

 

i would then say clutch something drivetrain related

 

ALOT of KA-T guys have had this problem as well, some say its a vac line, cant remember which one, others say its a problem with there AFC, which you dont have. Ive stumbled across this problem at least 10 times in S chassis forums, but there really hasnt been a proven solution. Ill try and find a thread I found in the past where they think they found a way to solve it.

 

Vac lines.......hmmmmmmmmm i look for those all around when i get home......

What forums was this thread on....maybe i can search with you.........FA? Zilvia? 240sx? Nico? brevard?

Thanks
RINKU

 

from experience,. if your tps is not correctly working, you can be rollin then step on clutch pop it in neutral or whatever... and the rpms drop waaaaaay low and sometimes even dies out... whether you are doing 15mph 20 or whatever... it just drops way low... i replaced my tps, made sure all vaccum was connected\ sealed up... and now when i press clutch it just drops to 900 and stays ... i say its the tps...

 

thats the problem, I cant remember

 

WOW thats funny cause mine is doing the same thing. what is the TPS? and were is it located.

 

TPS=Throttle Position Sensor