Overflow valve d12

Discussion in 'Volvo Forum' started by Helowrenchturn2, Mar 14, 2014.

  1. Helowrenchturn2

    Helowrenchturn2 Medium Load Member

    484
    140
    Apr 23, 2013
    0
    So, I changed this valve yesterday. Quick process, part was $41. The problem now is that I keep getting a code for fuel feed electrical fault mid 128 pid 94 fmi 3. This isn't making sense to me. It comes and goes, 34 times in 2 hrs. Any ideas?
     
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  3. salim patel

    salim patel Bobtail Member

    40
    6
    Nov 15, 2015
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    A
    Were you able to fix your problem I have same problem so far they change fuel pump accessories drive and fuil filter housing h
    They even supplied fuel directly from bucket and still no fuel pressure tks in advance .sam
     
  4. mohamed alhoriby

    mohamed alhoriby Bobtail Member

    3
    0
    Sep 28, 2017
    0
    MID 128 PID 94 Fuel delivery pressure
    In addition to the fuel pressure, the sensor also measures the fuel temperature.

    Component: (B51) Fuel pressure/temperature sensor

    Fault code
    FMI 3

    Short circuit to battery voltage.

    • Condition for fault code:
    • The voltage of EA27 exceeds 4.95 V.
    • Possible cause:
    • Short circuit to battery voltage, signal cable.
    • Fault in sensor.
    • Reaction from the control unit:
    • Fault code is set.
    • Yellow light requested.
    • Noticeable external symptoms:
    • Yellow lamp lights.
    • Appropriate check:
     
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