WTF IS WRONG WITH MY CAR!?!?!?!

Information on the naturally-aspirated KA24E and KA24DE engines.
kpc_0721
Posts: 350
Joined: Fri Jan 26, 2007 2:37 am
Car: 1991 240sx hatchback

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So my car has been sittin for about 2 weeks now because I have been having constant problems with it so decided to let the p.o.s sit and not deal with it. So today I just wanted to make sure the thing would still even startup and run lol, so I start it up and I was told before to try and unplug my maf because I was having sum idle problems so I did that and pluged it back in after about a minute. I decided to take it out for a drive, backed it out of the driveway and before after I let off the gas always it would almost die out but it didnt seem to do it this time. Put it in 1st gear and go to take off and the car starts to bog and jump....kinda like if it were someong first learning how to drive stick. It does it all the way untill about 3,500 RPM's and after that it seems ok but still a little jumpy. Oh yea and if I give it WOT it seems to run smooth and it also dosent bog or anything when I drive in reverse. Sorry for such a long post but I thought maybe the little details might help so if ANYONE has any idea what it might be then that would be GREAT.


WWJD

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check 4 vac. leaks. check injectors. is CEL on

shotzi
Posts: 11
Joined: Mon Jul 30, 2007 4:33 am
Car: 93 240sx

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if the cel is on check code. my car a few months ago did the same but cel was on . i had an open in the o2 sensor wich sent 0 v to the ecu . my car went full rich to try and composate. what a hassle.

kpc_0721
Posts: 350
Joined: Fri Jan 26, 2007 2:37 am
Car: 1991 240sx hatchback

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Wat is the cel? Actually yesterday I started the car and it seemed like it just got better on its own......drove the best it has in a long time actually and I didnt even have to touch anything. I think the next time I break something im just gonna let it sit and maybe it will work itself out again

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dickie
Posts: 16559
Joined: Tue Sep 06, 2005 7:55 am
Car: Killer Turtle

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injectors are probably on their way out.

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Brandon93240
Posts: 511
Joined: Mon Feb 26, 2007 11:41 am
Car: 1993 240sx

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That or a failing ignition component.

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Rekless KA
Posts: 158
Joined: Mon Jun 12, 2006 2:19 pm
Car: 96 240sx

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im having the same problem! just put up a post about it too! haha, i dont think its the injectors, i ruled them out in my situation, im thinking its a short or somethin, maybe cel idk anything about that, mine is the same and injectors are good! let me know what u come up with and ill do the same, we can help eachother rule things out for the possible answer!

kpc_0721
Posts: 350
Joined: Fri Jan 26, 2007 2:37 am
Car: 1991 240sx hatchback

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Im not really sure what the problem was but it seemed to have went away by itself? The gay thing is my starter or sumthing went out after I was about to try and figure it out.....cant replace the starter until I get the threads fixed either cuz the shop that put a helicoil in it ****ed it up so the bolt sits at an angle when it is threaded in

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Rekless KA
Posts: 158
Joined: Mon Jun 12, 2006 2:19 pm
Car: 96 240sx

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!!! that really sucks!

its good the problem went away, mine is still here, i cant seem to figure it out, i bought another ka motor so i wouldnt have to deal with messing anything up anymore like i used to, but noooooo, that could never happen!

fulmore240
Posts: 51
Joined: Tue Feb 13, 2007 1:50 pm
Car: 93 240sx ka24d

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i have the same problem and its been like this for the past 2 months....cel means check engine light....come on


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