Not the same.
ECU Models
Weber-Marelli IAW P7 ECU
851, 907 and early 888's up to serial number 000508.
P7s have no rear cylinder offset map.
Weber-Marelli IAW P8 ECU
Later 888's from serial number 000509, 916 Strada, 916SP, 916SPS, 996SPS
Note: The P7 and P8 ECUs turn-on the fuel pump once they initialize via a relay.
Weber-Marelli IAW 1.5M ECU
900ss, 750ss, Monster 900ie
Weber-Marelli IAW 1.6M ECU
One injector/cylinder: 748, 916 Biposto, 916 Senna, ST2
Weber-Marelli IAW 1.6M B1 ECU
Two injectors/cylinder: 996 Biposto, 996S
The IAW 1.6M uses a crank timing sensor at the cam jackshaft whereas the 1.6M B1 ECU takes it's timing firing points from the crankshaft.
Weber-Marelli IAW 5.9M ECU
2001 Monster S4, ST4S, 996R
2002 Monster S4, ST4S, Monster 620, Monster 900, 998, 998S, 998R
2003 Monster S4, S4R, ST4S, Monster 620, Monster 800, Monster 1000DS, 620S, 800SS, 1000DS, 749, 999, 998, 998S, 998R