It looks like there is something wrong with that wiring diagram, that's odd. Try this, back probe any one of the pink wires on the injectors with a volt meter and with the key on engine off you should read 12 volts, now pull those fuses out, one at a time, till your voltage drops to zero, now you'll know what fuse feeds the injectors, do that with the coils next and see what fuse powers them up.
@ws2664 The wiring diagram is correct, but the fuse diagram is apparently wrong. Pulling number 4 took the power away from all the Injectors and no start of course. Pulling 24 is also a no start, but the injector still has power, so I'm assuming coils as there is no ignition fuse. Pulling 13, which is supposed to be injector b, makes no difference in starting or running. Ross might have swapped lids, but the diagram shows the same. Thanks for the input, at least I know which one feeds the spider and have a good idea of coil fuse. I have a z71 around the same year with a v8 coming in tomorrow for a front suspension overhaul, I might compare if time allows. It's more curiosity at this point, but I'm the kind that has no problem running a coil ramp test on a control arm lol. Take care
Eric thanks for the closure much appreciated. 👍
It looks like there is something wrong with that wiring diagram, that's odd. Try this, back probe any one of the pink wires on the injectors with a volt meter and with the key on engine off you should read 12 volts, now pull those fuses out, one at a time, till your voltage drops to zero, now you'll know what fuse feeds the injectors, do that with the coils next and see what fuse powers them up.
@ws2664 The wiring diagram is correct, but the fuse diagram is apparently wrong. Pulling number 4 took the power away from all the Injectors and no start of course. Pulling 24 is also a no start, but the injector still has power, so I'm assuming coils as there is no ignition fuse. Pulling 13, which is supposed to be injector b, makes no difference in starting or running. Ross might have swapped lids, but the diagram shows the same. Thanks for the input, at least I know which one feeds the spider and have a good idea of coil fuse. I have a z71 around the same year with a v8 coming in tomorrow for a front suspension overhaul, I might compare if time allows. It's more curiosity at this point, but I'm the kind that has no problem running a coil ramp test on a control arm lol. Take care
@@manelishi13 There you go, keep up the good work. make sure you make the changes on your wiring diagram incase you have to look back on it in future.