Operation CHARM
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Oldsmobile
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1983
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Firenza L4-112 1.8L
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Repair and Diagnosis
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Powertrain Management
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Fuel Delivery and Air Induction
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Description and Operation
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Fuel Control - Throttle Body Injection (TBI)
Fuel Control - Throttle Body Injection (TBI)
An electric fuel pump--located in the
fuel tank
and controlled by the
fuel pump relay
--pumps fuel through an in-line filter to the
throttle body injector
.