what are the injectors ? 355s or 803s ?

what is the part number of the map sensor you removed ? APS 05/01 or 02/03 ?

is the chip for air injectors or amal valve ? (looks like the actuator is connected straight to the compressor housing, thus meaning that the boost is currently solely controlled by the actuator spring stiffness and shaft pre-load) what spec is the actuator ? is there more than half a hole of pre-load on it ?

have you changed the fuel filter ?

have you rewired the fuel pump and radiator fans ?