How does FI work?

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Corne

Pack Dog
Joined
Jun 26, 2008
Messages
282
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2
Location
Robertson
Bike
BMW F650GS / Dakar
Looking at it from the Dakar perspective, the throttle body house the injector, throttle position sensor and a throttle valve actuator (function?).  The injector is basically a solenoied valve that electronically control the amount of fuel injected. Is it a constant spray, just the amount is controlled, or shut-off as needed?  An air temp- an O2 sensor also feeds into the Control Unit.  Would any of the components need to be replaced at some stage due to normal wear and tear?  I know FI systems are generally very reliable.
 
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