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Fuel Injector

Fuel Injector
The sequential direct fuel injection (SFI) fuel injector is a solenoid-operated device controlled by the ECM. The ECM energizes the solenoid, which opens a valve to allow fuel delivery.

The fuel is injected under pressure in a conical spray pattern to the cylinder head directly.

A fuel injector which is stuck partly open will cause a loss of fuel pressure after engine shut down, causing long crank times.