Ds5 diesel hybrid 4 fuel issue

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Leejasp
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Ds5 diesel hybrid 4 fuel issue

Post by Leejasp »

Hi All
Looking for help
I have itermittent issue within fuel system. On a morning after driving for a few minutes. Car makes noise feels likes no fuel getting to engine. Eml comes on car still drives no issue all day and by teatime eml goes off. When it first comes on speed limits to 50 for a few minutes then back to normal and i have no further issues. Error code on diagbox is p0087 (fuel rail pressure low) and it says intermittent. I have changed fuel filter and added forte fuel system cleaner.
Today for the first time it cut out and red notice saying stop, this was at traffics lights waited with hazards on for a few minutes :shock: managed to turn off and back on car reset and has been fine since. Any help would be great thanks :-D

Lee
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GiveMeABreak
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Re: Ds5 diesel hybrid 4 fuel issue

Post by GiveMeABreak »

Fault Code: P0087
Description of Fault: Fuel system: The pressure measured in the injection rail is less than the setting.

Description of the diagnostics

The pressure measured in the fuel high pressure common injection rail is more than 180 bars lower than the reference value.

Possibility 1
For 3,2 s if the difference is greater than or equal to 250 bars

Possibility 2
For 6 s if the difference is greater than or equal to 180 bars

Conditions of activation of the diagnostics: Engine running
Conditions for Fault to clear:
  • Driving for 5 minutes with several full load accelerations for 10 seconds.
Downgrade Modes whilst Fault is active:
  • Request for Delayed Engine Stop
  • Deactivation of the strategy for monitoring the current of the fuel flow regulation valve
  • Deactivation of the request for the fuel high pressure test from the diagnostic tool
  • Deactivation of the kick-down for automatic gearboxes
  • Deactivation of the injector resetting strategy
  • Limitation of performance
  • Irreversible deactivation of the vehicle speed limiter (Need to switch the ignition off and then on, in order to make the function available again)
  • Switching on of the warning lamp and/or warning message:
    - Warning lamp MIL
    - "SERVICE" warning lamp
    - Warning lamp STOP
Symptoms:
  • Engine hesitating, cutting out
  • Problem activating the power unit
  • Lack of power
  • Diesel fuel consumption a bit higher
  • Fluid leak/Smells
  • Noise
  • Engine acceleration at wrong time
  • Smoke from the exhaust
  • Absence of automatic stopping of the internal combustion engine
  • Forced driving in electric transmission only
Suspect Areas:
  • Fuel
  • Diesel fuel filter
  • Low pressure diesel circuit
  • Fuel flow regulation valve
  • High pressure fuel pump
  • Fuel high pressure common injection rail pressure sensor
  • High-pressure fuel pipe
  • Fuel high pressure common injection rail
  • Fuel injectors
  • Electrical harness
  • Camshafts
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Marc
Leejasp
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Re: Ds5 diesel hybrid 4 fuel issue

Post by Leejasp »

Hi thanks for the info.
Is there a step by step guide to remove and replace hpfp or a picture of the location.
Thanks
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GiveMeABreak
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Re: Ds5 diesel hybrid 4 fuel issue

Post by GiveMeABreak »

I can put one up in the members section, but you'll need to upgrade your membership to access this area. Details below:

We can help if you need an original genuine part number, part diagram or factory build sheet and can't already find the info you need on the Forum. For this service, we do ask for a membership upgrade for official parts data as we are in turn charged for this. It will cover you for future part number requests for up to 2 years, so excellent value.

If interested, links are below, then provide your vehicle's VIN in full, which will be masked automatically when you submit your post.
A response to your question by a Forum Admin requiring parts or specific vehicle information requires you
to have made a current contribution
(Min. £10 / €11.48 or equivalent) to the Forum.
To Upgrade Your Membership & Donate Click Here

For Further Information About Vehicle Parts and VIN Numbers Click Here
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Marc
Leejasp
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Re: Ds5 diesel hybrid 4 fuel issue

Post by Leejasp »

Donated
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GiveMeABreak
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Re: Ds5 diesel hybrid 4 fuel issue

Post by GiveMeABreak »

Thanks for your Forum donation Lee.

Procedure here:

DS5 Hybrid High Pressure Fuel Pump Removal & Refitting

I assume DS5 with VIN ending in 545.
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Marc
Leejasp
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Re: Ds5 diesel hybrid 4 fuel issue

Post by Leejasp »

Yeah
Leejasp
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Re: Ds5 diesel hybrid 4 fuel issue

Post by Leejasp »

Hi Marc
Changed hpfp thanks for instructions
Now car will not start low fuel pressure can you tell me if the pump in tank is only fuel sender and guage or if it is a fuel pump.
Lee
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GiveMeABreak
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Re: Ds5 diesel hybrid 4 fuel issue

Post by GiveMeABreak »

It's a gauge only in the tank.

The engine ECU alters the fuel supply using the fuel flow regulator and the high pressure fuel sensor. So you'll likely have to prime it using the primer pump.
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Marc
Leejasp
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Re: Ds5 diesel hybrid 4 fuel issue

Post by Leejasp »

Hi
I think it might me fuel regulator or sensor. Does it a regulator or sensor on the fuel injector rail.
Thanks in advance
Lee
Hpfp has been tested and passed. Ffs.
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GiveMeABreak
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Re: Ds5 diesel hybrid 4 fuel issue

Post by GiveMeABreak »

Assume you're asking for the parts
Lee HP Sensor.png
(9) Diesel HP Sensor, part: 9814383880, £73.72
Lee Reg Temp Sensor.png
(1) Fuel Pressure Regulator, part: 1638151580, £171.78
(3) Fuel Temp Sensor, part: 1920NH, £77.14
Please Don't PM Me For Technical Help

Marc