NIssan Skyline r34 Power Off, Under 3500 RMP

[Chriscr36]

Hi my Nissan does not pull properly, in first gear up to 5000rmp from the 2nd only up to 3200rmp. It feels as if the engine is going out, then I hang my head on the steering wheel.
The engine is standard, the only change being converted from automatic to manual transmission.
Petrol pump is a Walbro 244.VAG ignition coils,
does anyone have any idea what it could be?
Maf, has already been changed..

Sotty for my English,,,

[joshuaho96]

Sounds like you have ignition misfire under boost. Start at the spark plugs and work backwards. 

[Chriscr36]

Hello
the the spark plugs are brand new, ignition coils from the Audi R8 (VAG) also new ..
has brought no change.
Boost pressure is standard,

[joshuaho96]

On 8/30/2021 at 10:22 AM, Chriscr36 said:

Hello
the the spark plugs are brand new, ignition coils from the Audi R8 (VAG) also new ..
has brought no change.
Boost pressure is standard,

Get some logs off of Nissan Datascan: https://www.nisscan.com/NDSI/index.php

If you post a log of the issue occurring it will give a pretty good hint as to what's happening.