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Fuso Canter 2006 3.0 DPF: Low Rail Pressure, Emergency Mode, Pressure Regulating Valve & Pump

robert199 11763 14
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  • #1 11333099
    robert199
    Level 21  
    The car goes into emergency mode with a rail pressure too low error.
    When checking the pressure it looks like this.
    It reaches a maximum pressure of 1800bar
    He is hesitating from 230-270 on vacations
    But it happens that after adding gas to the end at a pressure of about 1400bar, it suddenly drops to about 100bar and then starts to smoke intensely blue, after a while it jumps back to 1500bar and then 100bar. sometimes when I hold the gas in the floor, the pressure of 100bar is maintained until the gas pedal is released, when the gas goes back to 230-270bar.
    In emergency mode, the maximum pressure is 1250bar
    Pressure regulating valve replaced. The injectors were regenerated earlier.
    The pump was also replaced some 20,000 km earlier.
    Please help.
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  • #2 11414770
    krzysie22k
    Level 10  
    Hello, there can be many reasons, for example:
    -injection may be damaged (regenerated injectors are not always operational)
    - the valve on the high pressure strip may be damaged (check if the fuel in the tank is not overheating after driving several dozen km)
    - the computer can cheat a bit and it catches an error if you do not have the right equipment for this car, it often happens
  • #3 11421905
    robert199
    Level 21  
    I hope I found a problem. So a mechanical pressure control valve.
    Probably there is one for a nominal value of 1300bar.
    When I plugged the valve with an ordinary screw, the pressure dropped to 800bar, because it was loose on the thread.
    Now I have a big problem with finding such a valve with a pressure of 1800BAR.
    available only on the razmem service with a strip
  • #4 11421980
    fuelinyourblood
    Level 35  
    And since when should the nominal pressure of 1300 or even 1800 bar be there? And since when does the pressure regulator block the screw?

    Check the injectors on the returns, on the engine.
  • #5 11422053
    krzysie22k
    Level 10  
    You can easily buy a valve on the rail in Radzyń Podlaski
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  • #6 11422084
    Strumien swiadomosci swia
    Level 43  
    robert199 wrote:
    There is probably one for the nominal value of 1300bar.
    When I plugged the valve with an ordinary screw, the pressure dropped to 800bar, because it was loose on the thread.
    Now I have a big problem with finding such a valve with a pressure of 1800BAR.


    Enter no.
  • #7 11422152
    krzysie22k
    Level 10  
    600 373 251 and if you are not sure that it is only a valve, better eat to them to make you do it. Because it may turn out that the valve itself will not help or the entire high pressure strip is damaged. And such buying will cost you even more
  • #8 11424121
    robert199
    Level 21  
    this is the number of the strip 0445224027 BOSCH claims that they do not produce it anymore and it is supposed to be impossible to get.
    Returns were the first thing I checked.
    The limb is blocked to check the operation of such a valve.
    The fact that he lets it go I saw, because I started the car with the return unscrewed from Lithuania in the place of this valve.
    It is correct that the slat cannot be ruled out in this case, but the higher probability is that the valve is damaged
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  • #9 11425188
    krzysie22k
    Level 10  
    Do not buy any valves as it is unlikely to help. Take us to Radzyń near and you will certainly be in a working car. Because such buying and guessing will cost you even more. GREETINGS
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  • #10 11426230
    czester11
    Level 14  
    Hello
    A service action was used in the Canter euro 4
    There is a fuel tank repair kit to increase the fuel pressure.

    I found a description of this auction - it is in English and you can do this repair kit yourself.
    He can help us with the service 80% helped - you know that sometimes it can be something else.
    Regards
  • #11 11426558
    robert199
    Level 21  
    interesting with this service action.
    the pump in this car was broken, possibly because of this.
    a sudden drop in pressure could also be caused by insufficient fuel flow.
    I will check everything, but only on Monday. the most worrying me is that it may be the fault of the slat
  • #12 11435963
    krzysie22k
    Level 10  
    No service action will help you. At most, you will not be able to pay for the service, and the car will not drive if it does not drive.
  • #13 11437264
    czester11
    Level 14  
    krzysie22k wrote:
    No service action will help you. At most, you will not be able to pay for the service, and the car will not drive if it does not drive.


    SERVICE ACTIONS ARE PERFORMED ON THE WEBSITE FOR FREE.
  • #14 11439273
    krzysie22k
    Level 10  
    so what, even for free. and in this case it will not help
  • #15 11514837
    Rolandos
    Level 19  
    krzysie22k wrote:
    so what, even for free. and in this case it will not help

    Hello, and my friend krzysiek22k is he from Radzyń? and managed to fix the car?

Topic summary

The discussion revolves around a 2006 Fuso Canter experiencing low rail pressure, triggering emergency mode. The user reports fluctuating rail pressure readings, with a maximum of 1800 bar and drops to 100 bar, accompanied by blue smoke. Previous repairs included replacing the pressure regulating valve and the pump, with injectors having been regenerated. Responses suggest potential issues with the injectors, high-pressure valve, and fuel flow. A mechanical pressure control valve is suspected, and there are recommendations to avoid unnecessary purchases without proper diagnostics. A service action for a fuel tank repair kit is mentioned, which may help increase fuel pressure. The conversation emphasizes the importance of thorough checks before making further repairs.
Summary generated by the language model.
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