Droselinio vožtuvo pirkimo vadovas
Paskutinį kartą atnaujinta: 2026 m. balandžio 24 d.
The throttle body controls the volume of air entering the engine in response to accelerator pedal input. Modern electronic throttle bodies use a motor and position sensor instead of a cable. Carbon build-up, sensor failure, or motor faults cause rough idle, poor throttle response, and limp mode.
Throttle body problems
Throttle body issues are among the most common driveability complaints. Carbon deposits restrict airflow, and sensor faults confuse the engine management system.
- Rough, unstable, or surging idle speed
- Poor throttle response or delayed acceleration
- Engine enters limp mode (restricted power)
- Check engine light with throttle position sensor codes (P0120-P0124)
- Stalling when coming to a stop or when air conditioning engages
Cleaning vs replacement
Many throttle body issues can be resolved with cleaning. Complete replacement is needed when the motor or internal position sensor has failed.
- Clean with throttle body cleaner spray — do not use carburettor cleaner on electronic units
- Remove the throttle body for thorough cleaning of the bore and butterfly valve
- After cleaning or replacement, the throttle body may require relearning via a diagnostic tool
- Check the intake hose for splits that allow unmetered air past the throttle
Kategorijos puslapis
- Peržiūrėti tinkamas dalis
Elektroninio droselinio vožtuvo valymas ar keitimas — laisvosios eigos problemos, padėties jutiklio gedimai ir adaptacija.
Susiję gidai
- Fuel Pressure Regulator Buying Guide
Hard starts, black smoke, and fuel smell — how a fuel pressure regulator works, failure symptoms, and replacing it without damaging injectors.
- Intake Air Hose Buying Guide
Cracked or collapsed intake hoses cause poor performance and false MAF readings — how to inspect, diagnose, and replace rubber air intake ducting.
- Kuro bako pirkimo vadovas
Rūdys, nuotėkiai ir kuro tarša — plieniniai ir plastikiniai kuro bakai, talpų specifikacijos ir keitimo atsargumo priemonės.
- Kuro purkštuko pirkimo vadovas
Benzininiai ir dyzeliniai purkštukai — degimo sutrikimų diagnostika, purkštukų kodavimas ir priežiūros patarimai.
OE numerių patikra
Dažnai užduodami klausimai
How do I clean a throttle body?
Remove the intake hose, spray throttle body cleaner onto the butterfly and bore while manually opening the valve. Wipe with a lint-free cloth. For thorough cleaning, remove the unit entirely.
Does a new throttle body need programming?
Many electronic throttle bodies require an adaptation or relearn procedure using a diagnostic tool after fitting. This teaches the ECU the new throttle's closed and open positions.
Can a dirty throttle body cause stalling?
Yes. Carbon build-up around the butterfly valve restricts idle airflow, causing the engine to stall, especially when the air conditioning or power steering loads are applied.
What is drive-by-wire?
Drive-by-wire replaces the physical throttle cable with an electronic accelerator pedal position sensor and a motor-driven throttle body. The ECU controls the throttle opening based on pedal input and other factors.
How much does throttle body replacement cost?
The price of a throttle body depends on your exact vehicle and the brand you choose. Enter your registration above to see parts confirmed to fit, then compare prices from the brands we stock on this page. Free UK delivery on orders over £99.
Susiję gidai
Hard starts, black smoke, and fuel smell — how a fuel pressure regulator works, failure symptoms, and replacing it without damaging injectors.
Intake Air Hose Buying GuideCracked or collapsed intake hoses cause poor performance and false MAF readings — how to inspect, diagnose, and replace rubber air intake ducting.
Kuro bako pirkimo vadovasRūdys, nuotėkiai ir kuro tarša — plieniniai ir plastikiniai kuro bakai, talpų specifikacijos ir keitimo atsargumo priemonės.
Kuro purkštuko pirkimo vadovasBenzininiai ir dyzeliniai purkštukai — degimo sutrikimų diagnostika, purkštukų kodavimas ir priežiūros patarimai.
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