Hard to start when hot

[boatnboy17]

I have a 1990 240sx with 180k on it, I have been dealing with this problem for about 5 months, during the winter it is fine, and acts like no big deal, I have put new exhuast from manifold back, has new fuel pump/filter/injectors, new distributor/plugs/cap/rotor button/coil/ replaced oxygen sensor.

when it gets hot, it will either die, and won't start till cooled down, or when I shut it off, won't start back up, I can get it to catch every once in a while, but when it does it sounds like it is running on 1 or 2 cyclinders, it is getting plenty of gas cuase I keep smelling it.

any help on where to look would be great.

thanks

[Und3rprshUr]

cylinder head temp sensor. have you check it ?

if your smelling the gas .. somthing is wrong.

[boatnboy17]

is the cylinder head temp sensor the same as the colant sensor that is sitting on top of the intake manifold???? I have replaced that sensor