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 |