Stock ka24de constantly stuttering around 3k - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

blue rexsti · 11-02-2009, 10:23 PM

My car is always stuttering around 3000rpm, most of the time its in every gear. Sometimes it won't occur, but like I said, the majority of time it does. Its usually a quick 1-2 second movement that shakes me back and forth! I changed the spark plugs. I'm thinking next maybe a compression test or injectors? Any thoughts would be greatly appreciated. Thanks

markapple0507 · 11-02-2009, 10:48 PM

fuel pump maybe going out??? it happened to me so its a possibility. this has happened to other people check out their threads. that's where i found out about my pump

blue rexsti · 11-03-2009, 07:37 AM

I was searching "stuttering," "ka problems," etc and couldn't find anyone with the same problem. I was reading about a fuel injector fixing a stutter problem someone had around 5k rpm... but no one with mine. THanks for the input. I'm going to keep looking into it

s14driftNA · 11-03-2009, 09:21 AM

I have the same exact problem, someone help this dude!

blue rexsti · 11-03-2009, 05:18 PM

haha, yeah its pretty annoing huh? I put in new spark plugs and there was no stuttering for 2 days - then drift nirvana and back to stuttering again. Unfortunately, i go to school 2 hours away from my home so i'm not going to be able to do any work diagnosing the problem until i go back home over thanksgiving. Until then i figure why not get a bunch of reasonable suggestions that would possibly be relevant problems and their solutions and go from there.

blue rexsti · 11-03-2009, 05:23 PM

Also, if anyone else has this problem, please post and we can figure this out together!

*let5l1de* · 11-03-2009, 08:26 PM

Easy diagnostics for initial problem solving.

Your coil may be on the way out. Also check all the ground locations for good contact.

1000th post!

~mario

blue rexsti · 11-03-2009, 11:37 PM

Congrats on your 1000th post! What should I look for? in the coil pack?

*let5l1de* · 11-04-2009, 03:07 AM

Quote:

Originally Posted by blue rexsti

Congrats on your 1000th post! What should I look for? in the coil pack?

thx

s13 is single external coil and s14 are single internal coil (OBDII). No packs on KA engines unless ignition was modified.

You are looking for a solid blueish color spark with a white spark being okay. A yellow spark typically means the coils is not in optimum condition.

~m

*wbarrett48473* · 11-04-2009, 03:17 AM

Just check the codes on your ECU.

naw_speed · 11-04-2009, 07:55 PM

i'm workin on the same problem. except mine hasn't done it in awhile. it seem to like the heat. i droped in a new set of NGK plugs. swaped MAF with my buddy's SR....i allready had a new walbro installed when i did the swap and hard wired it....i havn't checked the color of the spark but, i have swap my coils around to see if there was a change...none! if i come up with something i'll be sure to hit this thread with it..

blue rexsti · 11-09-2009, 11:40 PM

Thanks a lot man. Yeah I just finished checking the ecu for codes. All three times at first it would shoot 34 but right after that it would keep shooting 55 and never go back to 34....55 means no faults...dang. My coils look good and I just replaced the spark plugs with ngk a month ago. I'm thinking it it is probably fuel related. I cleaned out my maf sensor this weekend and it was hardly stuttering and I thought the problem went away. Now it is slowly getting gettting back to stuttering under throttle. As well, I will try to keep this thread updated as I work to find the problem

11-02-2009, 10:23 PM	#1
blue rexsti Leaky Injector Join Date: Jan 2008 Location: A-Town Posts: 77 Trader Rating: (3)	Stock ka24de constantly stuttering around 3k My car is always stuttering around 3000rpm, most of the time its in every gear. Sometimes it won't occur, but like I said, the majority of time it does. Its usually a quick 1-2 second movement that shakes me back and forth! I changed the spark plugs. I'm thinking next maybe a compression test or injectors? Any thoughts would be greatly appreciated. Thanks

11-03-2009, 05:23 PM	#6
blue rexsti Leaky Injector Join Date: Jan 2008 Location: A-Town Posts: 77 Trader Rating: (3)	Also, if anyone else has this problem, please post and we can figure this out together! Last edited by blue rexsti; 11-03-2009 at 06:29 PM. Reason: double posted

11-03-2009, 08:26 PM	#7
let5l1de premium bullsh!t sifter Join Date: Dec 2007 Location: 626DRIFT, ca Posts: 1,053 Trader Rating: (23) Rides Gallery: let5l1de	Easy diagnostics for initial problem solving. Your coil may be on the way out. Also check all the ground locations for good contact. 1000th post! ~mario __________________ Don't Know How To Install? IM/PM Read My Sales Review 626 Friday Nights San Gabriel

11-04-2009, 03:17 AM	#10
wbarrett48473 Premium Member Join Date: May 2007 Location: Louisville, KY Age: 25 Posts: 47 Trader Rating: (0)	Just check the codes on your ECU. __________________

11-04-2009, 07:55 PM	#11
naw_speed Join Date: Apr 2008 Location: san antonio Age: 29 Posts: 4 Trader Rating: (0)	i'm workin on the same problem. except mine hasn't done it in awhile. it seem to like the heat. i droped in a new set of NGK plugs. swaped MAF with my buddy's SR....i allready had a new walbro installed when i did the swap and hard wired it....i havn't checked the color of the spark but, i have swap my coils around to see if there was a change...none! if i come up with something i'll be sure to hit this thread with it.. __________________ slammed & sideways...the ony way to ride!!

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11-02-2009, 10:48 PM	#2
markapple0507 Leaky Injector Join Date: Jan 2009 Location: El Paso, Tx Age: 19 Posts: 51 Trader Rating: (0)	fuel pump maybe going out??? it happened to me so its a possibility. this has happened to other people check out their threads. that's where i found out about my pump

11-03-2009, 07:37 AM	#3
blue rexsti Leaky Injector Join Date: Jan 2008 Location: A-Town Posts: 77 Trader Rating: (3)	I was searching "stuttering," "ka problems," etc and couldn't find anyone with the same problem. I was reading about a fuel injector fixing a stutter problem someone had around 5k rpm... but no one with mine. THanks for the input. I'm going to keep looking into it

11-03-2009, 09:21 AM	#4
s14driftNA Join Date: Aug 2008 Location: Decatur, MS Age: 19 Posts: 24 Trader Rating: (0)	I have the same exact problem, someone help this dude!

11-03-2009, 05:18 PM	#5
blue rexsti Leaky Injector Join Date: Jan 2008 Location: A-Town Posts: 77 Trader Rating: (3)	haha, yeah its pretty annoing huh? I put in new spark plugs and there was no stuttering for 2 days - then drift nirvana and back to stuttering again. Unfortunately, i go to school 2 hours away from my home so i'm not going to be able to do any work diagnosing the problem until i go back home over thanksgiving. Until then i figure why not get a bunch of reasonable suggestions that would possibly be relevant problems and their solutions and go from there.

11-03-2009, 11:37 PM	#8
blue rexsti Leaky Injector Join Date: Jan 2008 Location: A-Town Posts: 77 Trader Rating: (3)	Congrats on your 1000th post! What should I look for? in the coil pack?

11-09-2009, 11:40 PM	#12
blue rexsti Leaky Injector Join Date: Jan 2008 Location: A-Town Posts: 77 Trader Rating: (3)	Thanks a lot man. Yeah I just finished checking the ecu for codes. All three times at first it would shoot 34 but right after that it would keep shooting 55 and never go back to 34....55 means no faults...dang. My coils look good and I just replaced the spark plugs with ngk a month ago. I'm thinking it it is probably fuel related. I cleaned out my maf sensor this weekend and it was hardly stuttering and I thought the problem went away. Now it is slowly getting gettting back to stuttering under throttle. As well, I will try to keep this thread updated as I work to find the problem

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