Fuel Injector Function [Lf]; Fuel Injector; Fuel Pump Relay Function [Lf] - Mazda 2006 MX-5 Service Highlights

2006 mazda mx-5

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FUEL INJECTOR FUNCTION [LF]

• Injects fuel according to fuel injector control signals from the PCM.

FUEL INJECTOR CONSTRUCTION/OPERATION [LF]

• Installed on the cylinder head.

• Mainly consists of a coil, spring, needle valve and ball.

• A signal is sent from the PCM causes excitation current to pass through the coil and thereby pull in the needle

valve. Since the ball that opens and closes the injection opening is integrated with the needle valve, it is pulled

together with the needle valve and fuel is injected.

• The amount of injection is determined by the

open time of the needle valve (equal to the

energization time of the coil).

• Controls the fuel pump on/off according to control signals from the PCM.

NEEDLE VALVE

E5U011413250N01

E5U011413250N02

E5U011400000N06

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