Editing Fuel injection (section)

==== Single-point injection ====
{{Anchor|TBI|EGI|CFI|SPI|Throttle body injection}}
Single-point injection (also called 'throttle-body injection')<ref>{{cite web |title=How Fuel Injection Systems Work |url=https://auto.howstuffworks.com/fuel-injection.htm |website=HowStuffWorks |access-date=26 December 2022 |language=en-us |date=4 January 2001}}</ref> uses one injector in a [[throttle body]] mounted similarly to a [[carburettor]] on an [[intake manifold]]. As in a carburetted induction system, the fuel is mixed with the air before entering the intake manifold.<ref name="Lohner_64">Kurt Lohner, Herbert Müller (auth): Gemischbildung und Verbrennung im Ottomotor, in Hans List (ed.): Die Verbrennungskraftmaschine, Band 6, Springer, Wien 1967, {{ISBN|978-3-7091-8180-5}}, p. 64</ref> Single-point injection was a relatively low-cost way for automakers to reduce [[Vehicle emissions control|exhaust emissions]] to comply with tightening regulations while providing better "driveability" (easy starting, smooth running, no engine stuttering) than could be obtained with a carburettor. Many of the carburettor's supporting components—such as the air filter, intake manifold, and fuel line routing—could be used with few or no changes. This postponed the redesign and tooling costs of these components. Single-point injection was used extensively on American-made passenger cars and light trucks during 1980–1995, and in some European cars in the early and mid-1990s.
In the US, the G10 engine in the 2000 Chevrolet Metro became the last engine available on an American-sold vehicle to use throttle body injection.