97 Toyota 4 runner 2.7 3rz 2wd 5 speed

Process of elimination:

change:
fuel pump
fuel filter
throttle body gasket
throttle position sensor
ignition coils (2)
spark plugs
wires

clean
intake manifold
throttle body
IAC value

I really can't tell if she is misfiring or starving fuel.
It happens when accelerating up hill mostly or accelerating for just speed at 3 to 4 rpm in 2nd or 3rd gear.

Did not change the O2 sensor yet. Don't know if this could be actually the problem/

Can you please give me the answers to my problem.

Thank you -Malia

 

have you ohmed your injectors? not farmiliar with the 2.7 but i know some guys fixed missfires with injectors.