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Thread: Adding fuel

  1. #1
    Senior Member
    Join Date
    Oct 2005
    Posts
    175

    Default Adding fuel

    I understand that I can add fuel by:
    - raising the fuel pressure (B1001)
    - increasing the main inj. pulse (B0720/B0721)

    BUT isn't the B0720/1 some sort of calibration and the true command to inject more fuel is coming from B0727?
    Several tables are defined up to 100mm³ others up to 110mm³ (timing)
    B0727 accepts values of up to 200mm³, how can those be handled e.g. in the tables B1001 or B0720?

  2. #2
    Lifetime Member GMPX's Avatar
    Join Date
    Apr 2003
    Posts
    13,148

    Default

    Quote Originally Posted by Lennart
    I understand that I can add fuel by:
    - raising the fuel pressure (B1001)
    - increasing the main inj. pulse (B0720/B0721)

    BUT isn't the B0720/1 some sort of calibration and the true command to inject more fuel is coming from B0727?
    Several tables are defined up to 100mm³ others up to 110mm³ (timing)
    B0727 accepts values of up to 200mm³, how can those be handled e.g. in the tables B1001 or B0720?
    Well, seeing as though no-one else answered.
    Because B0720/1 only go up to 100mm3 it does seems odd that you would put more in B0727 when the injector pulse table will limit you to 100mm3.
    So to answer your question, right now, adjusting the pulse width in tables B0720/1 is the only way to add more fuel once commanded goes above 100mm3.
    Unfortunately altering these appears to skew the DIC MPG readings.

    Cheers,
    Ross
    I no longer monitor the forum, please either post your question or create a support ticket.

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