Restore smooth throttle response and steady airflow with the Hitachi Astemo Fuel Injection Throttle Body ETB0090. It installs as a direct-fit replacement for the 2006-2011 Honda Civic, regulating the volume of air that reaches the intake manifold in response to accelerator input so the engine gets the airflow it's calling for.
- Core function: Meters the air entering the intake manifold based on throttle position, working with the fuel-injection system to manage the engine's air demand.
- Direct-fit application: Designed as a replacement for the listed Honda Civic applications.
- Signs this part may need replacing: Rough or erratic idle, hesitation on acceleration, or a throttle-related fault code — diagnose the cause first, and if a failed throttle body is behind it, this unit replaces the original.
A throttle body that sticks, binds, or reads incorrectly can disrupt the air the engine receives; replacing a worn original with the ETB0090 restores proper airflow control for normal engine operation.
Interchange: 16400-RNB-A01 · 16400RNBA01 · S20237 · Manufacturer part number ETB0090.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicles does the ETB0090 throttle body fit?
It is a direct-fit replacement for the 2006-2011 Honda Civic. Check the Buyer's Guide tab to confirm it matches your specific vehicle.
What does a throttle body do?
It controls the volume of air entering the intake manifold based on accelerator input, so the engine receives the airflow the fuel-injection system is managing.
What are signs my throttle body may need replacing?
Rough or erratic idle, hesitation on acceleration, or a throttle-related fault code. Diagnose the cause first, since these symptoms can have other sources.
What interchange numbers does this part replace?
It cross-references 16400-RNB-A01 (16400RNBA01) and S20237. Its own manufacturer part number is ETB0090.
Will replacing the throttle body fix my rough idle?
If a faulty throttle body is the cause, replacing it with the ETB0090 addresses that. Rough idle can have other causes, so confirm the diagnosis before ordering.
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