# Part identification

**URL:** <https://community.cartalk.com/t/part-identification/180752>\
**Category:** Maintenance/Repairs\
**Created:** [November 20, 2021, 12:20am UTC](https://community.cartalk.com/t/part-identification/180752 "2021-11-20T00:20:11Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![sunrise3004](https://avatars.discourse-cdn.com/v4/letter/s/eb9ed0/32.png) [@sunrise3004](https://community.cartalk.com/u/sunrise3004)\
**Post date:** [November 20, 2021, 12:20am UTC](https://community.cartalk.com/t/part-identification/180752/1 "2021-11-20T00:20:11Z")

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Hi. Can anyone identify this part? It is for an 87 cavalier rs 2.0. Thanks.

![20211119_182725](https://global.discourse-cdn.com/cartalk/original/3X/6/0/60332f07bf1befc62b1b3d72e1eba8db3aac673d.jpeg)

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [November 20, 2021, 12:26am UTC](https://community.cartalk.com/t/part-identification/180752/2 "2021-11-20T00:26:04Z")

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That’s the throttle body with the fuel injector mounted on top.

Tester

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**Author:** ![sunrise3004](https://avatars.discourse-cdn.com/v4/letter/s/eb9ed0/32.png) [@sunrise3004](https://community.cartalk.com/u/sunrise3004)\
**Post date:** [November 20, 2021, 12:44am UTC](https://community.cartalk.com/t/part-identification/180752/3 "2021-11-20T00:44:59Z")

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Thank you so much. I thought of that but one fuel injector? I never thought that was possible.

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**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\
**Post date:** [November 20, 2021, 1:56am UTC](https://community.cartalk.com/t/part-identification/180752/4 "2021-11-20T01:56:24Z")

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> [@sunrise3004](#):
>
> I thought of that but one fuel injector?

Transitional from carburetor to throttle body to full injection system.

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [November 20, 2021, 11:52pm UTC](https://community.cartalk.com/t/part-identification/180752/5 "2021-11-20T23:52:59Z")

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> [@sunrise3004](#):
>
> one fuel injector?

That technique was pretty common in the late 80’s, early 90’s, called “throttle body injection”. There’s a mechanic’s joke about one of the version’s name, “cross fire injection”, instead should be called “cease-fire injection” … lol … Throttle body injection is not used much these days. Modern cars use either “port injection”, where there’s an injector for each cylinder, injecting into the intake area; or “direct injection”, again an injector for each cylinder, but injecting into the combustion chamber.

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**Author:** ![bcohen2010](https://avatars.discourse-cdn.com/v4/letter/b/779978/32.png) [@bcohen2010](https://community.cartalk.com/u/bcohen2010)\
**Post date:** [November 21, 2021, 3:24am UTC](https://community.cartalk.com/t/part-identification/180752/6 "2021-11-21T03:24:15Z")

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> [@sunrise3004](#):
>
> I thought of that but one fuel injector? I never thought that was possible.

That was a very common design in the mid-1980’s to mid-1990’s. The single-point fuel injection provides excellent performance and fuel economy compared to a carburetor, and cost a lot less to implement than multiport fuel injection. The Dodge Spirit/Plymouth Acclaim and Dodge Shadow/Plymouth Sundance were very common cars, which used this type of fuel system.

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**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [November 21, 2021, 3:49am UTC](https://community.cartalk.com/t/part-identification/180752/7 "2021-11-21T03:49:18Z")

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Our ‘95 Suburban had it, ran great throughout an Anchorage winter, way better than a carb.
