Let me know if this is right setup for a kill switch, to kill the injectors when EOC,
and for an led indicator light that goes on when the injectors are off.
My plan is to use an SPDT 5 pin 40 amp NC relay, i.e. normally closed (on).
The relay has two circuits, a control circuit coil, which controls the load circuit switch.
control circuit
85 ~ is powered by positive battery wire, which can
not be from 30;
86 ~ goes to the kill switch, which can be anywhere in the 85~86 circuit, then to ground.
load circuit
87 ~ positive to led light, to 87, connects to 30 when relay is on;
87a ~ positive injector wire, to 87a, connects to 30 when relay is off;
30 ~ goes through negative injector ground wire whether relay is on or off.
The same positive (not from 30) can piggyback to 85 and 87.
The 30 and 86 grounds can (maybe)
piggyback to the injector ground wire.
The idea is for the kill switch to turn off the injectors, which turns on the relay and led light.
