The relay is working correctly! When Safe Inject detects a low flow condition and issues it's 12 VDC discrete, the relay I have energizes and the controller display in the cabin goes blank. The HKS EVC VI uses a stepping motor in the engine compartment to modulate pressure to the wastegates. Given that stepping motors require commands to change position, I am wondering if the stepper motors doesn't change position when power is dropped? What kind of boost controller do you have?