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The removal and replacement of GDI injectors from a diesel engine is a fairly straightforward task. But the injectors’ role in compressing and injecting fuel makes it exceptionally important to get the replacement right, for safety reasons as well as ensuring the correct performance.
Watch the video guide from one of our expert Delphi technicians as they walk you through the steps involved in refitting GDI safely, including some advice on:
Why GDI systems can pose a safety risk
How to stop tip seals tearing when refitting
How to check for leaks.
GDI systems are typically inspected when a fault is detected, when the driver notices a loss in engine performance, or when the driver is experiencing poor fuel economy.
GDI stands for gasoline direct injection, which is a kind of direct fuel injection. Unlike multipoint injection systems, GDI uses high pressure fuel injection to fire directly into the combustion chamber.
A GDI system operates between 50 and 500 bar. That’s approximately 725 to 7250 psi. At these high pressures, technicians must take extra care when handling components and refitting a GDI system.
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