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  1. #1
    Junior Member
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    Jan 2013
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    26

    remap and egr fault codes

    Hi,
    i have a peugeot expert combi van/mpv 2.0 16v hdi model 2003. (Bosch ecu)

    i had a remap which included an EGR delete (basically that the egr will never be asked to
    open again in the software.)

    a couple of weeks now and i have the engine management light come on.

    the fault codes on the ECU are;

    permanent fault.fault.pre/post heating relay circuit.relay stuck.

    permanent fault.EGR butterfly position fault.open circuit.

    permanent fault.EGR air circuit fault. airflow measured less than recommended.

    my remapper has replied to my question of whether these faults were related to the remap? ;

    "No, but it means your relay for glowplugs is bad, and that your egr has
    electrical issues.

    The egr delete is based on the fact that the egr will never be asked to
    open again in the software.
    Removing it physicaly will require a lot of fault removing etc."

    my mechanic has told me;

    "The Pre/Post Fault you can ignore its a hiccup in the system due to the way HDI’s warm up on start.
    The Open circuit i rectified. however i had to disconnect it on the way back to yours as the airflow fault was causing limp mode to kick in.
    Once the problem with the EGR airflow is rectified you can plug the electro valve back in"

    what is at fault here?
    and what do i need to do?

    thanks in advance for any help.

  2. #2
    Senior Member
    Join Date
    May 2011
    Location
    Leicester
    Posts
    226

    Re: remap and egr fault codes

    Is that on Bosch EDC15 or Siemens?
    Custom 2.0 HDI tuning, visit www.hdi-tuning.co.uk
    Stage one tunes typically offer 125 BHP on the HDI 90, or 140 BHP on the HDI 110
    Stage two tunes offer in excess of 150 BHP
    Launch control, EGR delete and DPF removal also available

  3. #3
    Junior Member
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    Jan 2013
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    26

    Re: remap and egr fault codes

    Click here to enlarge Originally Posted by pro_steve
    Is that on Bosch EDC15 or Siemens?

    bosch

  4. #4
    Senior Member
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    May 2011
    Location
    Leicester
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    226

    Re: remap and egr fault codes

    It's most likely the EGR delete has been done wrong. The way I do it on EDC15 switches it off completely and requires the solenoid to be un-plugged....Remove it completely is a lot easier than bodging it not to come on in your ECU, there is a 1 that must be changed to 0. No Fault codes.
    Custom 2.0 HDI tuning, visit www.hdi-tuning.co.uk
    Stage one tunes typically offer 125 BHP on the HDI 90, or 140 BHP on the HDI 110
    Stage two tunes offer in excess of 150 BHP
    Launch control, EGR delete and DPF removal also available

  5. #5
    Senior Member
    Join Date
    Dec 2008
    Location
    Dorset
    Posts
    1,212

    Re: remap and egr fault codes

    Steve's right on this one. 110 bhp, EDC15
    My EGR system was completely removed and unplugged. It was also deleted in the ECU, but wrongly. Didn't cause any running issues, but regular EML displayed.

  6. #6
    Junior Member
    Join Date
    Jan 2013
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    26

    Re: remap and egr fault codes

    Click here to enlarge Originally Posted by pro_steve
    It's most likely the EGR delete has been done wrong. The way I do it on EDC15 switches it off completely and requires the solenoid to be un-plugged....Remove it completely is a lot easier than bodging it not to come on in your ECU, there is a 1 that must be changed to 0. No Fault codes.

    yeh, ive found out that i need to put in "a single value egr off"

    and disconnect the light blue electrical connector to the egr valve solenoid becuase the egr valve will now stay open (or put in a blanking plate)

    ( i have 2 solenoids one for the egr valve and one for the butterfly valve)

    do i need to unplug both of them or just the egr valve one?

    thanks for your help by the way.

  7. #7
    Senior Member
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    Dec 2008
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    Re: remap and egr fault codes

    No, the other solenoid is boost. Leave that alone

  8. #8
    Junior Member
    Join Date
    Jan 2013
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    26

    Re: remap and egr fault codes

    Click here to enlarge Originally Posted by fynnbar
    No, the other solenoid is boost. Leave that alone
    so forgive my stupidness...

    i only unplug the light blue electrical connector from the egr valve solenoid.

    leave all (vacum) pipes connected and leave the butterfly (boost) valve solenoid electrical connector connected?

    thanks for your help...

  9. #9
    Junior Member
    Join Date
    Jan 2013
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    26

    Re: remap and egr fault codes

    Click here to enlarge Originally Posted by The chod
    Click here to enlarge Originally Posted by fynnbar
    No, the other solenoid is boost. Leave that alone
    so forgive my stupidness...

    i only unplug the light blue electrical connector from the egr valve solenoid.

    leave all (vacum) pipes connected and leave the butterfly (boost) valve solenoid electrical connector connected?

    thanks for your help...
    are these photos the egr valve to unplug?;

    Click here to enlarge

    Click here to enlarge

    and are these photos of the butterflyfly (boost) valve to leave plugged in?;


    Click here to enlarge


    Click here to enlarge

    thanks

  10. #10
    Junior Member
    Join Date
    Jan 2013
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    26

    Re: remap and egr fault codes

    [quote=The chod]
    Click here to enlarge Originally Posted by "The chod":1xvs9znp
    Click here to enlarge Originally Posted by fynnbar
    No, the other solenoid is boost. Leave that alone
    so forgive my stupidness...

    i only unplug the light blue electrical connector from the egr valve solenoid.

    leave all (vacum) pipes connected and leave the butterfly (boost) valve solenoid electrical connector connected?

    thanks for your help...
    are these photos the egr valve to unplug?;

    Click here to enlarge

    Click here to enlarge

    and are these photos of the butterflyfly (boost) valve to leave plugged in?;


    Click here to enlarge


    Click here to enlarge

    thanks[/quote:1xvs9znp]


    when i say butterfly (boost) valve..
    i mean the solenoid operating the flap in the air intake related to the egr system.

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