Lexus IS220D Jerking when accelerating

[mmladenov21]

Hello! I have an issue with my Lexus IS220D 2008. When accelerating and pressing the pedal down to the max the car starts jerking when reaching 2500-3000RPM and after that it stops. This happens in 2nd and 3rd gear, the car is without a DPF. Any help would be appreciated!

[Linas.P]

Car without DPF cannot be driven on public road, so there is not much help that can be offered. 

You need to make the car road legal first then start looking for solution. And I am not saying that just because I hate cancer spreading cars, but as well because it may be related with the issue you describing. 

[Vintagesixtysix]

Maybe try and get an obd scan for faults.

if the scanner is a bit more sophisticated it can also give live readings so you can see what’s going /  or not going on when you hit that rev range you describe.

could be several things so difficult to know where to start….

Is it only when driving under load or replicates stationary.
Fuel pressure and delivery? 
Electrical?

etc etc

[mmladenov21]

It only happens when driving under load and it appears from time to time. Scanned with OBD no error codes.

[Vintagesixtysix]

If you can’t pull a code or get any live data…… it’s going to be a bit of a fishing trip.

Whats your mileage?

Does it have any service history?

Any other mods?

Have you tried any of the magic potions re fuel / injector cleaners?

Are you getting white exhaust smoke pre or post the the power drop?

 

[Linas.P]

2 hours ago, Vintagesixtysix said:

Any other mods?

@mmladenov21 - the only things which are not DPF related I can think off... check fuel pump and fuel filter.