Engine Performance (A8)Câu 102 / 120
The EVAP system is designed to:
a.Cool the intake charge
b.Filter engine oil
c.Capture and burn fuel vapors from the tank rather than venting them
d.Increase fuel pressure
Giải thích
The evaporative emission system stores fuel vapors in a charcoal canister and later purges them into the intake to be burned, preventing release to the atmosphere. A loose or faulty gas cap is a common cause of small-leak codes. It is tested for leaks during OBD-II monitors.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A P0420 code (catalyst efficiency below threshold) most often indicates:
- In a modern coil-on-plug ignition system, each coil:
- A knock sensor allows the PCM to:
- A loose or missing fuel cap most commonly sets which type of code?
- Technician A says low fuel pressure can cause a lean misfire and hesitation. Technician B says a clogged fuel filter or weak pump can lower fuel pressure. Who is correct?
- The throttle position sensor (TPS) informs the PCM about:
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