What Is A Cat Heui Pump?

What Is A Cat Heui Pump? It’s called HEUI and it stands for hydraulically activated electronically controlled unit injector. An interesting yet complicated injection system that functions by using pressurized engine oil to fire its fuel injectors, HEUI is the perpetual underdog in diesel performance. How does a cat heui pump work? Opposed to the … Continue reading What Is A Cat Heui Pump?