well ok i put this vacumm hose to the fuel regulator and put the AFR to 13.7

i checked my boost pressure and i am at 1.5 bar what i dont understand because my ecu chip only goes to 18 psi 1.24 bar the engine run good at full boost i have like 12 at AFR

know i put 12.7 AFR on idle have to try howmuch afr i have know at full boost

im looking forward for buying a wideband