Originally Posted by
sierrafery
Try a simple trick, see RAVE - Electrical library - Connector views - C0636 pin 16(black/orange wire in the middle plug of the ECU) , splice into this wire with a relay's coil as the other terminal to be connected to an ignition live
i checked the diagram and from pure electronic point of view this is missing for the NAS ECU cos it monitors the SAI pump's relay coil as it manages it through the earth path, the pump itself gets feed through the relay's contact and direct earth so the ECU can't monitor it other way than through the relay's coil.
i know too little about how the V8 engine works but from electronic management point of view this is the conclusion