i'll take your advice

my friend is good in tdi remapping. we work together .. i send him files from cars in Bulgaria .. he take it to closest church and send it back to me

but i dont trust him for my car

is lambda sonda correct in his results.. i can test it with tool..
0.00v is very rich (~17,5:1) 1v is lean (~10.1:1)..
what i'll be efect from 4bar (3bar is mine now..) fpr ? i mean .. injector issues maybe ? i have 4bar fpr in garage somewhere..
turbo setup will looks more likely if i change turbo pipes with new ones... this weekend will change all pipes with aluminium
If you give me the flow rate of your injectors at 3bar I can do some rough maths to give you their effective flow rate at 4bar. Off the top of my head a 250cc injector goes to 320cc (ish).
10:1 is rich, 17:1 is lean