ok im going to take it a couple of steps farther to check the main relay.check fuses 4 23 19 see if you have 12 volts at the yel/blu and the blk/yel key on. do a continuity test on the black wire.so if it doesn't have 12v at blk/yel or yel/blu you have a bad fuse or a broken wire.if it failles the continuity test you ground is not connected.if it pases the 12v test and the continuity test but you dont get 12v and the red wire on the injector resistor its the main relay or an open from the relay to the injector resistor.