Will leaky injecters cause this?!

[Boorah]

Im pretty sure I have leaky injectors on my 90 240, its running terribly rich, and the ECU is throwing a few codes, all related to the leaky injector code. Now the thing is, the car will cut fuel at a certain speed/rpm. Im not sure what the speed is because the speedo doesnt work, but its about 4500 rpms in 4th and 3500 rpms in 5th. Once it cuts fuel, I cant give it gas till it drops a few thousand rpms. Would this be a problem related to the injectors, or would it be something else? Im in the process of getting some injectors, but was hoping to find out before then.

I just bought the car last week, so im still trying to get everything in order, any help is much appreciated!!!

[martins_240sx]

I honestly think it sounds like your ECU might be on the fritz. I say this because it sounds to me like your describing what its like to hit your rev limiter. try and find another ecu at a junk yard or temp swap a friend if they have a 240 (corresponding engine of course).

[Muskulito240sx]

leaking injector will make your car run like its untooned at lower rpm and sound a little better at higher rpms so it doesnt sound like thats ur problem

[Vegascorbin]

Most likely it is your ECU. Check this thread. It is long but sounds like it covers your problem.

zerothread?id=394164

There were 3 reported fixes to this. 1 replaced his Speed Cluster and the other two replaced their ECU's.

Also posable that a bad ECU is causing your injector problem.

[Boorah]

Well I had a spare ECU and I tried that, but that did nothing. Pulled the injectors today, and yap, need new ones, but agree that they shouldn't be causing this. Im going to try to get a new cluster and see what happens, and maybe a new speed sensor. Any other ideas?

Thanks for the posts guys!