maybe you don't fully turn on the Park? if you press the brake on any gear, how does it start?Have id'd the problem as a bad ground somewhere, occasionally will not start in P but will start in N.
Went thru all connections and tightened everything down will start but again the problem of not starting all the time in P is still there.
not quite like thiswill remove lock and reconnect all wires and make sure I have solid connection, no problem
Hopefully it solves the problem