Engine Drivetrain 2nd Gen Most liked posts in thread: Cleaned the MAF

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  1. Rixter

    Rixter Well-Known Member

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    #2 Rixter, Feb 17, 2011
    :useless

    :popcorn:
     
  2. Redbeard

    Redbeard JCW: because fast is fun!
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    #3 Redbeard, Feb 17, 2011
    I don't know if it as big a deal on these cars but I've done my fair share of MAF cleaning on Fords and it's day and night when they were dirty.

    Sent from my Droid using Tapatalk
     
  3. SNEEEZY - Erika

    SNEEEZY - Erika M/A Wrenchin' Babe!
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    #4 SNEEEZY - Erika, Feb 17, 2011

    Wait a minute...let me see if I'm understanding correctly.

    You cleaned your MAF and then you can actually w-a-i-t until tomorrow to test it out?! :shocked:

    Sir, you certainly possess much more self-control than I do!

    Seriously, though...please post pics. :popcorn:

    Erika
     
  4. TGS91

    TGS91 New Member

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    #5 TGS91, Feb 17, 2011
    Jim,

    I'm *assuming* that your air flows through the MAF before the air box on a justa as it does on a 'S'. Is that correct?
     
  5. Justa Jim

    Justa Jim Well-Known Member
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    #6 Justa Jim, Feb 17, 2011
    Nope, after. If it was before, then how could an oiled filter cause a problem?

    Jim
     
  6. Justa Jim

    Justa Jim Well-Known Member
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    #7 Justa Jim, Feb 17, 2011
    Well, I did start it an hour or so after the cleaning to be sure it would. :cornut:

    Test drive in the AM. Night all. :Thumbsup:

    Jim
     
  7. Justa Jim

    Justa Jim Well-Known Member
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    #8 Justa Jim, Feb 17, 2011
    That, my friend is what I am trying to find out. :Thumbsup:

    Jim
     
  8. TGS91

    TGS91 New Member

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    #9 TGS91, Feb 18, 2011
    well thats what had me scratching my head
     
  9. Justa Jim

    Justa Jim Well-Known Member
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    #10 Justa Jim, Feb 18, 2011
    I don't know anything about an "S" or a "JCW". If the MAF is "before" the air box, then why is there even a concern about an oiled filter or any other debris for that matter? I thought that is why they told gmodder his problems started. :confused5:

    Jim
     
  10. Metalman

    Metalman Well-Known Member
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    #11 Metalman, Feb 18, 2011
    The OEM location always have the MAF after the air has been filtered.

    It helps to keep the birds and such from harming the sensor.
     
  11. BThayer23

    BThayer23 Well-Known Member

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    #12 BThayer23, Feb 18, 2011
  12. david in germany

    david in germany New Member

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    #13 david in germany, Feb 18, 2011
    the MAF is NOT before the filter on any of or Minis

    oops I missed p2. lol
     
  13. Justa Jim

    Justa Jim Well-Known Member
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    #14 Justa Jim, Feb 18, 2011


    Having it before the filter seemed odd to me, too. The one ben showed is the R56 MC, like mine.

    Jim
     
  14. Justa Jim

    Justa Jim Well-Known Member
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    #15 Justa Jim, Feb 18, 2011
    Test Results:

    Went on my daily drive to where we keep some of our horses. I know this route and the readings I normally get, so this is where I wanted to try it out.

    I have picked up almost 3mpg. Can't really tell about the idle, since I have the torque arm bushing, but it might be smoother. I have been running a K&N filter the going on 2 years. I would say this helped, but it would not seem the MAF was really, really dirty.

    I now know how to do this on the 2009 justa, without taking everything apart now, so I will repeat a couple times per year. Can't hurt. Give it a try. :Thumbsup:

    Jim
     
  15. BThayer23

    BThayer23 Well-Known Member

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    #16 BThayer23, Feb 18, 2011
    Sweet. 3mpg is pretty dramatic. Thanks for documenting the results, Jim.

    I'd say this is something you should do as often as you change your spark plugs, 40-60k miles, or more if you use a reusable filter. Clean the filter, re-oil, and then clean the MAF a week later. My other car has a MAF sensor, and that's the maintenance interval I use.
     
  16. Justa Jim

    Justa Jim Well-Known Member
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    #17 Justa Jim, Feb 18, 2011
    No problem Ben. The more information we capture here, the better. :Thumbsup:

    Jim
     
  17. Nathan

    Nathan Founder

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    #18 Nathan, Feb 18, 2011
  18. TGS91

    TGS91 New Member

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    #19 TGS91, Feb 18, 2011
  19. david in germany

    david in germany New Member

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    #20 david in germany, Feb 18, 2011
    That is actually after the airbox. The air feeds from the bottom of the box and out the top to the MAF in route to the turbo.
     
  20. Nathan

    Nathan Founder

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    #21 Nathan, Feb 18, 2011
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