GENERATION NEXUS
MOST of us are familiar with the concept of fuel injection systems and the Engine Control Units (ECUs) that run them. But Haltech’s new NEXUS R5 really stands out from other ECUs, as it is designed to manage so much more than just the engine. That’s why Haltech is calling it a VCU – Vehicle Control Unit.
The box plays host to not only an ECU but also another three-letter acronym: a PDM, or Power Distribution Module. What’s that, you ask? Well, first let’s talk about wiring.
The most conventional way to wire up a car is to use a fuse-and-relay system, where the wiring loom connects any high-current-draw devices (thermo fans, electric pumps and the like) to the battery,
