1kzte prado J95 jerks while Accelration (2 Viewers)

[Ifoo786]

hello everyone. i am facing an issue with my 96 prado auto 1kzte.
On light foot eveything is good . the moment i hard press the accelrator it start jerking like engine is missing or something like that. mostly it happens after 2k rpm until next gear shifts and rpm is down under 2k .
Recently changed injector nozzles
turbo
intercooler as previous was leaking

 

[Ifoo786]

hello everyone. i am facing an issue with my 96 prado auto 1kzte.
On light foot eveything is good . the moment i hard press the accelrator it start jerking like engine is missing or something like that. mostly it happens after 2k rpm until next gear shifts and rpm is down under 2k .
Recently changed injector nozzles
turbo
intercooler as previous was leaking

jerk problem was there before injectors changing, and accelration was sluggish. now accelration is good but only it gerks when i press paddle slightly more then normal

 

[Perfect]

It can be a multitude of things.
Let's start with the basics:

Boost sensor system:
Check of the small vacuum pipes to and from the boost sensor is uncracked, in and clean.
Then, is the little filter blocked? Easiest is to bypass the filter just to test and push the pipe directly into the sonsor. The hole in the manifold van be blocked, perhaps push a thin rod into the manifold to ensure it is open. Next is to exchange sensor but there is a few other things to check before spending money.

Fuel system:
The fuel filter can leak on the o-ring. Perhaps do a filter change?
Have you checked the bleed/purge/lift pump on top of the fuel filter? Push it down(pump it) and see if it becomes too hard to push down. These pumps tend to loose their effieciency over time or it can show a leak on the fuel lines.
Maybe crack open the injector lines one at a time with the engine idling - it could be an airlock.

I recently chased a no low down torque and hard starting issue and was ready to pull the pump for a big $$$ rebuilt but it was just the pump that was not tightened down properly and moved on it's own accord - basically self adjusting the pump timing!

I hope you track down the issue very soon!