ok. i have a 96' z24 with a 2.4. about six months ago i pulled the engine and had it professionally rebuilt. i put it back in with a new clutch and new accessories. i have AEM pulleys, HKS intake, upper/lower mounts, and exhaust. it has run fine until two weeks ago when it died as i was driving down the road. i pulled over and turned it off. a few min later it started back up. later that day it did it again but this time it would start then die, over and over. since that day it hasn't done that again but it has had problems starting and the engine light comes on. the codes say lean MAP, TP sensor, and CAT below threshold.
i started it this morning and it idles like a twin V. it sounds like its missing but only between 1000 and 1750 rpm. after i rev higher than that it idles fine. it accelerates beautifully, but if i let off the throttle, even just enough to maintain a constant speed, it losses rpm's and slows. I've changed the fuel pump recently, cleaned the injectors, didn't replace the fuel filter, (doh ! ) new plugs already, changed the MAP and TP sensors. . i can't find the problem. what do you guys think?

have you had those sensors replaced? oh and by the way, HKS doesn't make an intake for J-bodies.




I was a retard, and now I'm permanently banned.