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The fault cods EDC 03779,03778 have overlapping causes consist leakage of injectors,valve ,pipe but in some time malfunction in the high pressure pump , any one agree with me or there is any addition causes.
03779.....EDC ............ Rail pressure: Leakage in quantity compensation
03778.....EDC ...................Rail pressure: Leakage in overrun conditions
EDC is for electronic diesel control , which i expect you knew , so i would get the OBD codes read to pinpoint the sensor/switch causing the issue , can't be more exact as you faile to mention vehicle make etc
The fault cods EDC 03779,03778 have overlapping causes consist leakage of injectors,valve ,pipe but in some time malfunction in the high pressure pump , any one agree with me or there is any addition causes. some people have solve the problem with changing the fuel filter.
03779.....EDC ............ Rail pressure: Leakage in quantity compensation
03778.....EDC ...................Rail pressure: Leakage in overrun conditions
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