Diesel misfire ?

Hello all ... had my vrs cr 170 for a couple of weeks now . Love the car but on two or three seperate occasions it’s felt as it it had a very obvious misfire .. as if the turbo just stopped or the fuel was blocked for a split second . It’s done it at high speed and low speed . As soon as I let off the throttle and then I go back on it the fault has cleared itself . Back to full power . No fault codes . Any ideas ?? Sound familiar ?? 

Also I must add it’s done this on part throttle and full throttle .