WOT thorttle runs perfect. but pertial throttle runs like cutting off sluggish

[T88lexus]

I have a ca18det. and i am having a problem with running on pertial throttle.

if it is WOT car does not miss or cutting off or sluggish at all, however, if you just give a little touch of gas and hold it there.. it seems like cutting off and sluggish, and jerking the car around. but if you give more than certain amount of gas she will moves...

possible concern.CASthrottle body ... seems to be old anywayTPS sensor is bad.o2 sensor is bad.

motor pull perfect compression and ecu tested at 55 is ready to go..

one thing.. I have trouble hooking up the o2 sensor. here I what I have done. hooking up the 3 wire bosch sensor. two white and one black.. black is signal wire, and two whites are heater/12v/ground.. if I hook it up . car cuts off. if I disconnect it car runs but same things happen on pertial throttle. boost it fine on WOT, o2 sensor is brand new.

let me know what your thought is.

[s13sr20chris]

o2 sensor should not have much control over fuel but on the older engines/ecms it did have quite a bit. if your o2 sensor being hooked up will cause it to stall i think it has some serious control over fuel. i rec you double check the sensor wiring. maybe monitor the signal as it comes out. also i wonder about your tps because of the throttle specific incedent. do you have a meter? if so please monitor tps voltage during different running conditions.