small engine stumble

[Nytroboost]

My dad has 1100 turbo 2012 stock. In the mid range just as about to pin it it stumbles a bit like its lean and sometimes wide open. Wondering if any else have a similar issue or any suggestions. Thanks

 

[TurboDicky]

My dad has 1100 turbo 2012 stock. In the mid range just as about to pin it it stumbles a bit like its lean and sometimes wide open. Wondering if any else have a similar issue or any suggestions. Thanks

Fuel pickup issue. Make sure the pickups have been installed properly.

 

[Nytroboost]

Ok thanks will have a look but it got about 2000 k on it and just started happening.