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[Solved] Opel Vectra C 2.2 Direct (2004) - No Fuel Pump Supply: Checking Relays, Fuses & Troubleshooting

Musican 39735 7
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 17366178
    Musican
    Level 10  
    As the topic no power supply fuel pump VC 2.2 direct 2004 automatic
    Relays checked fuses also
    Please advise where to look for damage.
    best regards
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  • #2 17366611
    decybel91
    Level 42  
    E.g. shaft position sensor You can't do anything without a good diagnosis.
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  • #3 17366683
    Musican
    Level 10  
    Thank you for this advice
    I disconnected the plug from the pump and connected the battery supply directly and the pump did not start.
    Does this mean damage to the pump?
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  • #4 17367224
    decybel91
    Level 42  
    Yes. But if you don't have electricity then you must have a fuse / relay blown or you have incorrectly connected the battery supply,
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  • #5 17368246
    Musican
    Level 10  
    Question to colleague Decybel91
    I bought a new pump and installed it, the car started and after 2-3 minutes it went out.
    the pump cannot be heard after switching the ignition back on.
    I checked the power supply at mole and it's 11V
    the car does not start.
    If you can, advise what to do.
    maybe it's a relay but I was looking on the net and I don't know which one.
  • #6 17441871
    kraktus
    Level 11  
    Hello. Did you solve this problem?
    I have a similar situation: the old pump was damaged after replacement with a new one does not work.
    Fuse, relay checked, the power supply at the start is like 12V and 0.7A (I don't know if it's not enough) but the car does not start.
    The pump works after applying voltage directly from the battery!?

    Musican wrote:
    maybe it's a relay but I was looking on the net and I don't know which one.
    The fuse is F10 20A the green R4 relay you will find in the trunk on the left in the REC module the relay is behind the fuses Opel Vectra C 2.2 Direct (2004) - No Fuel Pump Supply: Checking Relays, Fuses & Troubleshooting
    Opel Vectra C 2.2 Direct (2004) - No Fuel Pump Supply: Checking Relays, Fuses & Troubleshooting
  • #7 17456405
    Musican
    Level 10  
    Hello . I solved the topic.
    The reason was the fuel pressure sensor.
    After connecting the op-com it did not indicate any damage to the sensor.
    so I didn't consider him.
    I bought a professional diagnostic interface and a surprise. (defective fuel pressure sensor).
    after replacing the car fired without a problem
  • #8 17456472
    Musican
    Level 10  
    Hello . I solved the topic.
    The reason was the fuel pressure sensor.
    After connecting the op-com it did not indicate any damage to the sensor.
    so I didn't consider him.
    I bought a professional diagnostic interface and a surprise. (defective fuel pressure sensor).
    after replacing the car fired without a problem

    Added after 21 [minutes]:

    Fuel pressure sensor defective.
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Topic summary

The discussion revolves around troubleshooting a fuel pump supply issue in a 2004 Opel Vectra C 2.2 Direct. The user initially checked relays and fuses but found no power to the fuel pump. Subsequent tests included directly connecting the pump to the battery, which did not activate it, suggesting pump damage. After replacing the pump, the vehicle started but stalled shortly after, with the pump becoming inaudible upon ignition. Further investigation revealed a power supply of 11V at the connector, leading to uncertainty about relay functionality. Ultimately, the problem was identified as a defective fuel pressure sensor, which was not detected by initial diagnostics but was confirmed with a professional diagnostic tool. Replacing the sensor resolved the issue, allowing the vehicle to start without problems.
Summary generated by the language model.
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