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FUEL INJECTOR CONSTRUCTION/OPERATION [L3 Turbo]

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• Located under the intake manifold, installed directly to the cylinder head.
• Consists of a coil, spring, needle valve, filter and o-ring.
• Drive current is sent from the injector driver module causing excitation current to pass through the coil and thereby pull in the needle valve. Due to this, the injection nozzle opens and fuel is injected.
• The amount of injection is determined by the open time of the needle valve, i.e. the energization time of the coil.

1 | Coil
2 | O-ring
3 | High pressure fuel
4 | Filter
5 | Spring
6 | Needle valve