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  1. Koicarpkeeper

    Koicarpkeeper VxON Club Member VxON Club Member

    Messages:
    5,730
    Likes Received:
    3,172
    Location:
    Swansea / Pen-Y-Bont, South Wales
    Drives:
    Meriva A 1.7 CDTI Design / Corsa D 1.0 Ecoflex / Chevvy Spark
    Seen loads of posts about blanking or partially blanking the EGR valve on the 1.9 engine but very few about doing the same thing on the 1.7 CDTI engine.
    I see blanking plates are available but is it worth doing on the 1.7 engine? I know the EGR cooler helps to warm the engine up quicker so a partial blank would probably be better than the full blank.
    Thoughts?
    Anyone done it and can give their feedback on it?
     
  2. andyl

    andyl Well-Known Member

    Messages:
    10,194
    Likes Received:
    3,141
    Location:
    bristol
    Drives:
    Astra J 1.4T sri, Astra H VXR Van .
    Done loads but then you probably know that.. if you do a partial blank you wont need the software doing, it will improve throttle response and mpg, just make sure you clean the valve and the throttle body while you have it apart, it should stay relatively clean after blanking.
     
    Fred Bassett likes this.
  3. Koicarpkeeper

    Koicarpkeeper VxON Club Member VxON Club Member

    Messages:
    5,730
    Likes Received:
    3,172
    Location:
    Swansea / Pen-Y-Bont, South Wales
    Drives:
    Meriva A 1.7 CDTI Design / Corsa D 1.0 Ecoflex / Chevvy Spark
    Thought you might have done a few (y) just odd that the 1.7 doesn't seem to get mentioned much in regards to EGR blanking.
    Might give it a go.
    Got no problems with mine at the moment but when I blanked the girlfriend's Corsa 1.0 it made a noticeable difference.
    Changing the SCV a while ago has given a good 10% improvement in mpg over the last 1,500 miles so if I can bump it up a bit more I will be more than happy.
    I still plan on sticking the endoscope into the EGR to see if it is crudded up before pulling anything off it.
     
  4. andyl

    andyl Well-Known Member

    Messages:
    10,194
    Likes Received:
    3,141
    Location:
    bristol
    Drives:
    Astra J 1.4T sri, Astra H VXR Van .
    It will be mate..believe me, even the newer A17DT engines we do are badly coked up, especially the throttle body where it enters the intake system.
     
    N871BUD likes this.
  5. Koicarpkeeper

    Koicarpkeeper VxON Club Member VxON Club Member

    Messages:
    5,730
    Likes Received:
    3,172
    Location:
    Swansea / Pen-Y-Bont, South Wales
    Drives:
    Meriva A 1.7 CDTI Design / Corsa D 1.0 Ecoflex / Chevvy Spark
    This one alright?
    Do I need two gaskets as well?
     
  6. Koicarpkeeper

    Koicarpkeeper VxON Club Member VxON Club Member

    Messages:
    5,730
    Likes Received:
    3,172
    Location:
    Swansea / Pen-Y-Bont, South Wales
    Drives:
    Meriva A 1.7 CDTI Design / Corsa D 1.0 Ecoflex / Chevvy Spark
    To answer my own question apparently I will also need two gaskets, one each side of the plate.

    97362830
    5851948 GASKET,EXHAUST GAS RECIRCULATION PIPE
     
  7. N871BUD

    N871BUD VxON Club Member VxON Club Member

    Messages:
    1,813
    Likes Received:
    417
    Location:
    East London
    Drives:
    now drives a 4 wheel vauxhall
    I advise you to put new gaskets as they do not seal properly if reused. Not sure how much mpg gain you will achieve but for sure you going to have a smoother drive and power pickup, also your engine will be cleaner and oil is not going to get that fast black becouse of recirculated ash.
     

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