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THROTTLE BODY INJECTION (TBI)

Definition: A type of electronic fuel injection system that uses a single injector or pair of injectors mounted in a centrally located throttle body. The throttle unit resembles a carburetor except that there is no fuel bowl, float or metering jets. Fuel is sprayed directly into the throttle bore(s) by the injector(s).
Related Terms
Computerized Engine Controls
Electronic Fuel Injection (EFI)
Electronic Control Unit (ECU)
Module
Multi-port injection (MFI)

Related Resources:

Making Sense of Sensors: Part 1
There are a lot of things going on in your engine as you drive. A lot of information is taken in and processed. But how is this information gathered and what happens to it once it's collected?

Making Sense of Sensors: Part 2
There are a lot of things going on in your engine as you drive. A lot of information is taken in and processed. But how is this information gathered and what happens to it once it's collected?

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