logo elektroda
logo elektroda
X
logo elektroda

Fiat Scudo 2 2.0 JTD 130 2013 - The low pressure fuel pump does not work.

fest 8934 14
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16422707
    fest
    Level 22  
    Welcome.

    The pump in the tank does not turn on after turning the key.

    I cannot connect it for a short time, because there is no connector from the BSM to the Tank, except for the fuel sensor connector. Pulling out a full fuel tank doesn't smile.

    Will someone tell me which socket and which BSM pin is connected to the pump? Possibly a diagram, I looked in google but did not find it.

    BSM-R03-9675878080
  • ADVERTISEMENT
  • #2 16422755
    jenusz11
    Level 20  
    first, do diagnostics on 90%, it's not the pump's fault, I would look for a computer in the plug, fuse box
  • #3 16422818
    fest
    Level 22  
    I think so too, the car has 80,000 kilometers, so the pump is not. I even have a Lexia but I rarely used a Citroen Jumpy from 2005 - it didn't break down. I don't know if my software will communicate with the 2013 Scudo.

    The simplest diagnostics that comes to mind is measuring the pump supply voltage directly on the BSM pin or connecting the pump outside the BSM.

    Could a damaged sensor in the fuel filter cover cause this symptom?
    Should the pump not turn on for a while?

    I visually checked all sockets and plugs coming to and from the BSM during sleep, etc.
  • ADVERTISEMENT
  • #4 16422854
    jenusz11
    Level 20  
    and the engine ecu plugs? , I do not remember if the damaged sensor disconnects the pump, but I know that it will not light without it, replace the entire filter with the housing, around PLN 250, from what I remember
  • #5 16423123
    fest
    Level 22  
    Well, you know wrong, because without it (disconnected) it ignites :( , of course, as has fuel.

    I found out that in older models after 2007. there could be no low pressure pump, the difference was in the priming bulb, as in old PSA diesels.

    Tomorrow morning I'm pulling out the tank :( .
  • ADVERTISEMENT
  • #6 16423328
    T5
    Admin of Cars group
    You have a plug on the front of the tank. Look for. From a float and a fuel pump.
  • #7 16423477
    fest
    Level 22  
    There is only a 2 pin connector from the sensor, it looks like there is actually no pump in the tank.

    Until the knock, the car worked, I did not pay attention to the sound of the pump, I have been driving it for only 3 months.

    A clogged dragon? Some kind of check valve, pump on the engine?
  • #8 16423495
    szymitsu21
    VIP Meritorious for electroda.pl
    fest wrote:

    The car worked until the knock


    I understand that the car does not start? Fault history?
  • ADVERTISEMENT
  • #9 16423499
    KarizmoGSM

    Level 28  
    I do not know how you want to fix it if you have no idea, connecting to the tester, check the fuel pressure on the rail, reading coffee grounds, it's a waste of time.
  • #10 16423562
    fest
    Level 22  
    People, I thank you very much for your help but.

    Will the connection to the tester be a reading of coffee grounds as I can see what is happening in the fuel supply lines? Do I need to take measurements when connecting to the tester?

    There is no fuel pressure behind the filter, it is too low, it's as bright as the sun.

    The history of the fault is that there is air in these hoses, the car fires, sometimes it is hard, the car is driving, sometimes there is an error - the reason is that there is air in the fuel supply.

    From you, because you are more experienced, I would like to know if there is a pump in the tank, where there is a fuel supply check valve, in the pump on the engine, or in the pump on the tank, if there is a pump in the tank, what connector in BSM is responsible for that perform the measurement, or supply it from the outside.


    Is anyone able to answer these simple questions? I'm really asking you.

    And for your attention to the green concept, thank you very much, I read the threads on the electrode every now and then and every other is about the green concept and that your computer will show everything. Well, he will not show, the tester will not show, because he will not say, replace the check valve, replace the pump, check the wires, etc., etc. errors do not necessarily suggest a defect, unless you have dug such cars with a specific fault at least a few.
  • #11 16423579
    szymitsu21
    VIP Meritorious for electroda.pl
    connect the TESTER, because it may turn out that for some specific reason there is no pressure. Maybe the ECU doesn't want the pump to run?
  • #12 16425327
    fest
    Level 22  
    At the moment it is like this:

    There is no pump in the tank.

    The check valve is in the pear and let it go. The pear replaced, the buried power cables under the hood were corrected, ours or rather the Italians were here, generally a butcher somehow, because the bundles above the starter are intertwined with oil lines, and a loose oil dipstick tube :( .

    Every few tens of seconds, a large air bubble, I tied up everything without a filter to the bubble with filtered fuel from the overflow and it was ok. the quick coupler was in poor condition. I changed it and for about 15 minutes I had a ban on my face because there was no gram of air after venting.

    Unfortunately, after these 15 minutes at idle, I have a large bubble again every few dozen seconds.

    At the weekend I will take out the tank, look at the dragon and the connectors on the tank, it is possible that there is something wrong there, the car is definitely from the rental company, maybe someone poured some shit into the tank.
  • #13 18832120
    n_e_o1
    Level 1  
    Hello, I have a similar problem. Did you deal with the fault?
  • #14 18832377
    ptr92
    Level 19  
    fest wrote:
    Unfortunately, after these 15 minutes at idle, I have a large bubble again every few dozen seconds

    You will always have some air bubbles. If you have a single air bubble during the start-up in the morning, the car will start without any problems. Worse, if you have a dry fuel pipe, then you have to look for the cause of air in the system. And yes, take it easy, you will still have time to do something with the car
  • #15 19653851
    fest
    Level 22  
    I replaced the lid - the one with fuel filter stubs. It helped, maybe it had some crack.

Topic summary

The discussion revolves around a Fiat Scudo 2 2.0 JTD 130 (2013) experiencing issues with the low pressure fuel pump, which does not activate when the ignition key is turned. The user is unable to locate the connector from the BSM (Battery Supply Module) to the fuel tank, as only the fuel sensor connector is accessible. Various suggestions include performing diagnostics to rule out issues with the ECU or wiring, checking the fuel filter for a damaged sensor, and confirming the presence of a pump in the tank. The user discovers that there is no pump in the tank and suspects air in the fuel lines, leading to intermittent starting issues. They plan to inspect the tank and connectors for potential blockages or faults. Other users emphasize the importance of connecting a tester to diagnose fuel pressure and air leaks in the system.
Summary generated by the language model.
ADVERTISEMENT