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View Full Version : Question about my engine.


Coodsy
07-22-2009, 06:44 PM
Ok so like when my car has been driving around for ten minutes of so, when you talk off, at low RPM it like makes a jerking motion, until you like pretty much floor it it doesn't stop for a while, then it drives normal. i think its the TPS (throttle positioning sensor) but im not sure. Any one have any ideas why?

240driftr
07-22-2009, 06:56 PM
check ur ur fuel filter, fuel pump,spark plugs,battery connections
an let me know. im have a problem wit my car stayin on. like wen i slow down to stop it shuts off an idles from 200 to 1500 rpms. i think it might be my maf.

Coodsy
07-22-2009, 06:59 PM
All that stuff is good, it idols at 700~1k and doesnt die even if its the first time i turned it on all day, but the jerking thing scares the crap out of me, i have to shift at like 1.5k so it wont do it. only does it 1st gear tho..

nrmskate
07-22-2009, 07:05 PM
Happened to me.

Ended up being timing.

But I have heard a lot of people took off there tranny brackets and they tend to do that.

Here is what mine did.

YouTube - KA24E 240sx Jerking (http://www.youtube.com/watch?v=X3ELh4GyK2E)

240driftr
07-22-2009, 09:50 PM
ill look into it an ill let u know wat i find tommorrow night

240driftr
07-24-2009, 07:22 PM
do u have an sr20det or stock ka?

s13newb
07-24-2009, 08:00 PM
lol kool vid on youtube look like a suden roller coster ride haha .....check your maf ..mass air flow sensor ...also if you got an aluminum intake make sure it aint touching any ground.. i had a honda dat jerked wen it taped my engine bay ground .. lol jumps spark .