wierd idle/ accel. I have searched already

[kdpiggins1]

Hey everyone, I have been searching for hours and I still cant find an answer to my problem.

I own an 89 240sx 5spd that has a brand new KA-24E engine with about 3k miles on her. Everything has been replaced EXCEPT for the fuel injectors.

It sometimes idles ok, but most of the time idles rough so that the car wobles back and forth just a tad. and when i accel to 4k RPM and shift it jerks a couple of times and then its fine. when I shift above 4k RPM everything is perfect.

Could it be the injectors? Like I said above, everything has been replaced in the engine except the injectors, I just wanted some knowledgble avdice from you guys. Thanks for your time

Oh, and the engine was dynoed and ran fine when it was built so it was properly put back together.

[Razi]

Checking the fuel injectors would be a good idea.

[turbochargenissan]

i had a rebuilt ka24de and i have kinda the same problems as well . after 4k it just falls on its face and doesnt go at all .. and it idels from 800-1100 in neutral idk yet what it is ive searched myself for weeks and cant seem to put my finger on it.. and it started happening when i had it rebuilt and the company cant even figure what it is ..

[kdpiggins1]

It sucks! lol. The car still drives fine, but sometimes it does that thing. It's so weird cause when I WOT it's fine. And it's like $90 bucks to run a diagnostics so I would rather figure it out myself.

Hey Razi, how would I be able to tell if an Injector is bad? And if there ok what is a good way to clean them up?