In NSP, the Wiring node of a function is where its settings meet the physical ECU. It's where you tell the Nexus which pins to use. For Water Injection Advanced, that means assigning the outputs that run your water or water-methanol system, such as the pump and any control solenoid, so the function's tables actually drive something.
Haltech hasn't published detailed help for this node yet, so we won't guess at individual settings. Here's what we check on any water injection install before the first test:
- Assign outputs that can handle the job, and drive high-current pumps through a relay rather than directly from the ECU.
- Confirm each output switches the right device before running the engine, and watch for leaks at every fitting.
- Set up the fuel correction and ignition correction tables so the tune responds when injection is active.
Want a hand planning the wiring? Contact us and we'll help you lay it out for your build.
