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Thread: 406 Hdi EGR

  1. #1

    406 Hdi EGR

    I have a 406 Hdi can I just blank off the EGR with a plate or not?
    Have read that this will put on the MIL light true or false?

  2. #2
    Senior Member
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    Re: 406 Hdi EGR

    IIRC if it's pre-2003, which is probable being a 406, you won't get a MIL.
    In any case, if you're worried, block the vac line to the EGR from the solenoid, and leave the blue connector connected.

  3. #3

    Re: 406 Hdi EGR

    I thought it monitored the amount of air flow when the EGR valve was opened (e.g. the air flow reading drops as it is getting air via the EGR valve)

  4. #4
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    Re: 406 Hdi EGR

    ive blanked my EGR with a plate from ebay and no lights on the dash also unplugged it tho mines a 307 110 hdi 2.0
    Peugeot and Citroen Diagnostics Owner

  5. #5
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    Re: 406 Hdi EGR

    Bosch - OK. Siemens - MIL

  6. #6

    Re: 406 Hdi EGR

    Will it say on the ECU which system it is?

  7. #7
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    Re: 406 Hdi EGR

    Just look on the fuel rail or injectors for identification

  8. #8

    Re: 406 Hdi EGR

    Thanks it is a Bosch system so will try a blanking plate off E bay.

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