electrical Engine juddering when foot right down even at optimal operating conditions HELP!!??

[22G 4 Ever]

Hello everyone, first time on any forum but must say love that flashing of lights whenever another Scooby passes!! Brilliant....

Basically replaced many parts with new OEM or upgrades. Fuel pump, injectors and the like. Also a VF35. Juddered before remap by well known chap and still does!!?? My first classic from memory did exactly the same on and off. Coil packs replacement and beautiful. Could do that right now but for you expert's do you think something else straight away? Don't want to keep replacing filters, plugs and just end up with the problem still present due to not changing a £5 part!! Any advice or even someone local that could know exactly where to start then WOW. The going rate and then some,

please help this naive newbie,

thanks so much,

Steve

 

[Tidgy]

wasn't it diagnoised before mapping? racedungnamix map it by any chance?

[Jay762]

Wotcha and welcome - any codes generated?