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Thread: DPF and EGR Info from the SAAB CD

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    Default DPF and EGR Info from the SAAB CD

    Hi guys, after my recent dabblings in the world of DFP's and EGR's i thought i'd share the info i found on the SAAB workshop information CD.







    Hope this is of use..!

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    Regular Member mozzer99's Avatar
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    That is very useful and interesting.
    Wish I had known this earlier, that the sensors have no effect on the saturation reading. Having cleaned my DPF and found the saturation readings still very high I assumed it was knackered - in fact it was clean and just needed resetting as new one.

    'Prevent manual regeneration if the particle trap is too full'. Does that mean that a really clogged DPF cannot be regenerated at all and must be renewed (or wheel cleaner acid as in other posts)?



    The EGR is also interesting as it suggests that blocking it off (partly as per the fiat gasket) would only result in the EGR opening further to obtain the required amount of gasflow?
    Last edited by mozzer99; 1st September 2010 at 12:02. Reason: add egr comments

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    Quote Originally Posted by mozzer99 View Post
    'Prevent manual regeneration if the particle trap is too full'. Does that mean that a really clogged DPF cannot be regenerated at all and must be renewed (or wheel cleaner acid as in other posts)?
    Mine was too full, as the differential pressure was going over 90kpa on full throttle. But i fitted a miniature pressure regulator to limit the HP side to 20kpa, which basically tricked the car into thinking the blockage wasn't as bad, and an auto-regen took place. It peaked at about 10kpa after the regen.

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    Regular Member Chocki's Avatar
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    Damn, dosen't look good as to fooling the ECU into thinking my EGR is working.
    Currently it's blanked and has been for over 11000 miles, guess I'll have to live with the P0400 fault.

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    Quote Originally Posted by Chocki View Post
    Damn, dosen't look good as to fooling the ECU into thinking my EGR is working.
    Currently it's blanked and has been for over 11000 miles, guess I'll have to live with the P0400 fault.
    You could try unblanking the EGR valve and then removing the butterfly plate from the 'throttle body'.

    See thread in 'diesel tuning'.

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