ka24de PROBLEM

[osal]

i ve bin fightin this wierd hesitation problem for months now...searched and searched forum after forum...common culprits checked out ok..

-maf sensor(tried another one)(cleaned it)(cheked wires, continuity)
-o2 sensor(replaced)
-coolant temp sensor(replaced)
-took apart intak manifold, cleaned egr, aiv, replaced pcv replaced all vaccumlines behind egr
-fuel filter replaced
-new plugs
-new wires
-cheked compression( pretty good actually 180 across all cylinders)
_cheked ecu codes( code 41 only, replaced intake air temp sensor) cel light went away after that
_replaced cat with a high flow one, even replaced entire exhaust since the old one had holes.
-replaced distributor
-timing at 20btdc
-FUEL PUMP replaced(walbro)
- added ground wires

CAR: 1995 240sx
ENGINE: ka24de(OBD2)


PROBLEM:...car idles hard as a rock no stumbling idle or anything, however wenever the car accelerates it does not rev smoothly,it revs kinda ok in neutral but it is not the 2.5k rev limiter set by the maf sensor but a weird hesitation. It happens wether hot or cold

POSSIBLE SOLUTION: The only thing left i started to look at today was the knock sensor, i read many threads about it so i started testing today. When the manifold was out..the sensor looked in great shape so i didnt worry about it, continuity exist from the ecu pin to the conector...however wen i disconect the knock sensor conector from the engine harness, nothing happens and the car still has the hesitation and the check engine light does not come on.is this normal??

I am thinkin there is a problem in the wire that conects the knock sensor itself to the engine harness(runs inside intake manifold)...one of the pins should have continuity with ground but none of them chek out...


Do u guys think this is wat is makin my baby run like that?...I mean how should the car run if the knock sensor was disconected?..i get no engine light on and the car runs just as b4 with the hesitation...

HELP GUYS

THANKS