90 s13 engine missing until 45mph HELP!!!!

[golfboy240sx]

God I hope some one can help. I love my car and all of a sudden it is being bad. When I accelerate off at a stop sign or going around a corner I lose all power and the engine starts missing up til about 45mph, after that it seems to be OK but I can't get any power getting around a corner, and it is really starting to tick me off. I don't know what it could be, injectors perhaps (already had 2 replaced). Engine has 95,000 miles on it. I can't even take anybody off the line either because I have no power. Any suggestions would be greatly appreciated. It has gotten worse and is really starting to worry me. Please reply ASAP so I can try to get this fixed so I can get back to crusin in my 240. thanks golfboy240sx

[lunchmeat5000]

I had a 89 240sx that did the same thing. I ended up replacing all the injectors( which were leaking gas on the manifold), and it still bogged down unger 40-45 mph. Missing, dying, not starting. Anyway it turned out to be one of the temp sensors went out and was telling the comp that the motor was cold all the time, and making the mix richer. replaced it, and it ran like it was new.....after about $500 worth of work, labor, all injector and the temp sensor. hope ive helped a lil.