Advice on 2011 DS3 DSport error codes
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  1. #1
    Tadpole
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    Default Advice on 2011 DS3 DSport error codes

    Hi guys,

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    my sisters 2011 DS3 Dsport has been randomly playing up on start up. Runs rough, blows some black smoke etc. Thought it may be a bad coolant temp sensor and a code is logged, so will order and replace the integrated unit.

    I'm more concerned about the other code, what do you guys think?

    P0087 Petrol high pressure regulation fault

    MED17_4_EURO5 Fault reading Expert /Global test /Node 3 /Fault reading Vehicle \A55 \INJ \MED17_4_EURO5 \A55_MED17_4_EURO5_Lecture_defauts.s : 1254_02

    Properties From : Local Status : Temporary fault Fault characterisation : Fuel rail pressure too low

    List of associated variables Engine speed 1207 rpm
    Engine coolant temperature 23 įC
    Vehicle speed 0 Kph
    Inlet manifold pressure 540 mbar
    Richness regulation status Open loop (conditions for switching to a closed loop not yet satisfied)
    Calculated charging value (filling) 26 %
    Quick richness correction (row 1) 0 %
    Slow richness correction (row 1) -1 %

    P0118 Engine coolant temperature sensor signal fault

    Properties From : Local Status : Temporary fault Fault characterisation : Open circuit or short circuit to positive
    List of associated variables
    Engine speed 1478 rpm
    Engine coolant temperature -40 įC
    Vehicle speed 0 Kph
    Inlet manifold pressure 260 mbar
    Richness regulation status Open loop (conditions for switching to a closed loop not yet satisfied)
    Calculated charging value (filling) 10 %
    Quick richness correction (row 1) 0 %
    Slow richness correction (row 1) -1

    Is it is possible the Petrol high pressure regulation fault could be a result of the bad temp sensor? It seems it was logged at idle

    Thanks for any info!

  2. #2
    COL
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    Default

    I'm no expert but I would change the coolant sensor, clear the error codes, start the car and see if the car runs properly and also what codes are present.
    Regards Col

    1973 Renault R12 Station Wagon
    1976 Renault R12 Station Wagon
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    http://alpine-a110.weebly.com/

  3. #3
    Fellow Frogger! Greg's Avatar
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    Hi,

    My experience with Diaxbox is limited......Even though I've used it a lot. It never gives you straight answers, and it all comes down to experience in the long run, understanding what really is the problem, and one thing can cause heaps of others.

    The temp sensor, its probably about $120 at the dealers. They may be available aftermarket like EAI? If you can get the temp sensor at a good price, but I would clean & check the terminals, and good Jay Car cleaner and lubricator.

    If you get stuck, contact me at [email protected], I know someone that I can ask that might make things easier to diagnose

    Best regards,

    Greg

  4. #4
    1000+ Posts Ken W's Avatar
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    Below is a copy of a post I made in Nov 2016 - I think it still applies.

    Citroen Aust have a service campaign live at the moment to fix four items on the THP engines. If you take your car into a dealer they will do the following for free:

    1. Replace engine temp sensor,
    2. Test and replace if necessary the timing chain and tensioner,
    3. Replace the plastic water pump with a metal covered one,
    4. Add a bit to the wiring loom to prevent deterioration due to stretching.

    Mind you, this is not a recall and you have to know about it to get it done. Ring them up and quote your VIN and they will tell you what is outstanding on your car.

    Cheers, Ken

  5. #5
    1000+ Posts Ken W's Avatar
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    We had some dramas with low fuel pressure errors on Dave's C4B7 THP engined exclusive. We ended up monitoring the fuel pressure rail pressure in real time using either Diagbox or one of the android apps via a bluetooth ODB dongle. When we turned the ignition on, the fuel rail pressure was 5 bar as generated by the lift pump in the petrol tank and when the engine was started it jumped to what ever it was supposed to be ? 100 bar. Luckily our HPFP seemed to settle down after a bit of testing and error and ECU resetting although quite a few seem to get replaced.

    See this link found by Google search.
    308 THP 150 (EP6DT engine) erratic idle

    Cheers, Ken

  6. #6
    Fellow Frogger!
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    Sounds like the high pressure fuel pump, which can go bad and create the issues as described. Depending in mileage and service history, possibly Citroen might entertain a good will claim.

    Otherwise, the pumps are the same as used in Mini Cooper s of the same vintage. So It will be much cheaper to source the pumps ex USA via eBay or specialist Mini parts supplier such as ECS tuning.

    For DIY run down also somebody else's experience if the symptoms on a mini which are essentially are using the same engine design and components:

    DIY HPFP Replacement - How to replace High Pressure Fuel Pump on MINI Cooper R56 JCW - North American Motoring

  7. #7
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    P0087 is insufficient pressure in the fuel common rail. It's a known fault with this engine from early years, caused as Kaza1 notes, by a defective HP pump. The driving dog may be damaged. You might get P2192 as well.

    Check the fuel low pressure side as well before replacing, as they are expensive. You don't want to find it's the lift pump afterwards.

    The latest high power versions of the engine use a different design.
    Last edited by seasink; 23rd January 2017 at 09:07 PM. Reason: typo

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