총 비용
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공임
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부품비
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소요 시간
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2026. 9. 4. 작업
난이도 & 준비물
증상
2007 혼다 시빅, 주행거리 90km - 연비 불량 문제. 스캔 결과: STFT -9%, LTFT -7.03%, 산소센서 전압 0.55v, EGR 에러 99%, 명령 EGR 듀티 0%, 명령 증발가스 퍼지 22%, MAF 유량 2.7g/sec. STFT 음수값은 리치 조건을 나타내며 연비에 큰 영향을 미치고 있음.
처리 내용
연료 트림 수치로 보아 측정되지 않은 진공 누수가 있는 것으로 판단됨. 진공 누수 테스트 방법: 연기 분사기(smoke machine)가 없을 경우 소형 프로판 병을 사용하여 테스트 가능 - 엔진 아이들 상태에서 프로판 팁(불은 붙이지 않음)을 흡기 주변에서 천천히 움직이면서 엔진 RPM 변화를 감지하면 누수 위치를 파악할 수 있음. 브레이크 부스터 누수 가능성도 확인 필요. 진공 누수 수리 후 연료 트림이 정상화되어야 정상적인 연비 회복 가능.
관련 고장코드
출처
이 사례는 Stack Exchange (미국)에서 수집한 데이터입니다.
신뢰도 4.1점(높음) — 출처 소스의 전문성/검증구조를 기준으로 산정된 점수이며, 정확성을 보장하지 않습니다.
원문 보기 ↗혼다 시빅 다른 정비 사례
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다른 차종의 냉각수 교환 사례
닛산 알티마
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아우디 A4
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차량 정보 없음
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