07 daf lf 55 kicks to start but won't go ?

Hi have daf 55 was parked 2weeks ago going fine will not start now has 5 warning on dash 2red engine and air 3orange abs engine and altanator had it pluged in to Delphi computer can't get in to ecu seem to be loads of fuel have changed altanator and crank sensor took off low preacher pump shaft looks ok didn't do anything at tank primer seem to be working fine will kick to go sometimes chip in key ok . My brother was first to try to start it and it needed jump start he says he didn't put Leeds on wrong but who knows hope someone can help me thanks