Engine missing when heavy throttle

[Joshp]

Hi guys,  my girlfriend has a 2018 1.2 turbo grand land x, the car drive lovely and can’t fault it! Only when heavy accelerating in 2nd and 3rd at lowish revs is misses until the revs up build up and then runs tidy again… any advice would be much appreciated, 

thanks guys!

Edited March 17 by Joshp

[Vauxhall Owners Club]

Could need fuel filter or Air Mass Meter which give similar symptoms

Alternatively, the turbo variable vanes might be gummed up with carbon

The best method is to get a scan done on the engine system to see what codes appear in the memory and go from there for a more specific diagnosis