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벤츠 651엔진 디젤4기통 연료센서 문제
스케너 진단시 254100 연료 저압회로의 압력센서에
(-)극 단락이 발생했습니다- 코드가뜸
센서데이터값이 오르락내리락
센서교환 후 데이터값 약간의 변동은있으나 정상으로
판단할수있음 하지만 651엔진의경우 정상이아님
메인 배선하네스 주무르면 값이 요동치는걸 확인가능
원인은 신호선등 배선이 지속적으로 쓸려 단선에
가까울정도로 손상됨
배선수리
배선수리후 압력 편차 없이 일정하게 표출
배선수리전 전압값은 4.5v정도 수리후는 5v로 변동없음.
동일코드로 입고시 센서교환전 배선점검 필요.
"Benz 651 Engine Diesel 4-Cylinder Fuel Sensor Issues"
A short circuit to ground was detected on the pressure sensor of the fuel low pressure circuit during the scaner diagnosis, specifically at the -) polarity
No signal
The sensor data is fluctuating wildly
"After replacing the sensor, there is a slight variation in the data value, but it can be considered normal. However, in the case of the 651 engine, it's not normal."
"If you touch the main wiring harness, you can see the price fluctuating."
The cause is the continuous wear and tear on the wiring, which has been compromised to the point of being on the verge of a short circuit
wiring
The pressure reading remains constant and free from pressure fluctuations after the wiring is completed
The voltage reading before the wiring repair is around 4.5V, and after the repair, it remains steady at 5V.
"When receiving the same code, a wiring check is required before replacing the sensor."
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