Engine Drivetrain 2nd Gen Cleaned the MAF

Discussion in 'Tuning and Performance' started by Justa Jim, Feb 17, 2011.

Tags:
  1. Justa Jim

    Justa Jim Well-Known Member
    Lifetime Supporter

    May 6, 2009
    7,422
    1,685
    113
    Ratings:
    +1,685 / 0 / -0
    Well, I have not seen any real signs that I needed to do this, but with all the talk, of late, about oiled air filters, I went for it. It was actually very simple to do.

    I will take a test drive tomorrow and if I see any difference at all, I will post the results.

    Jim
     
  2. Rixter

    Rixter Well-Known Member

    Jun 14, 2009
    1,230
    79
    48
    Technology Architect
    North of the 49th
    Ratings:
    +79 / 0 / -0
    :useless

    :popcorn:
     
  3. Redbeard

    Redbeard JCW: because fast is fun!
    Supporting Member

    Dec 17, 2009
    1,636
    398
    83
    Glorified spreadsheet jockey.
    Austin, TX
    Ratings:
    +413 / 0 / -0
    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
     
  4. SNEEEZY - Erika

    SNEEEZY - Erika M/A Wrenchin' Babe!
    Lifetime Supporter

    Sep 27, 2009
    1,212
    116
    63
    Female
    Ratings:
    +121 / 0 / -0

    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
     
  5. TGS91

    TGS91 New Member

    May 8, 2009
    1,593
    18
    0
    Sales Dude
    St. Louis, MO
    Ratings:
    +18 / 0 / -0
    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?
     
  6. Justa Jim

    Justa Jim Well-Known Member
    Lifetime Supporter

    May 6, 2009
    7,422
    1,685
    113
    Ratings:
    +1,685 / 0 / -0
    Nope, after. If it was before, then how could an oiled filter cause a problem?

    Jim
     
  7. Justa Jim

    Justa Jim Well-Known Member
    Lifetime Supporter

    May 6, 2009
    7,422
    1,685
    113
    Ratings:
    +1,685 / 0 / -0
    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
     
  8. Justa Jim

    Justa Jim Well-Known Member
    Lifetime Supporter

    May 6, 2009
    7,422
    1,685
    113
    Ratings:
    +1,685 / 0 / -0
    That, my friend is what I am trying to find out. :Thumbsup:

    Jim
     
  9. TGS91

    TGS91 New Member

    May 8, 2009
    1,593
    18
    0
    Sales Dude
    St. Louis, MO
    Ratings:
    +18 / 0 / -0
    well thats what had me scratching my head
     
  10. Justa Jim

    Justa Jim Well-Known Member
    Lifetime Supporter

    May 6, 2009
    7,422
    1,685
    113
    Ratings:
    +1,685 / 0 / -0
    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
     
  11. Metalman

    Metalman Well-Known Member
    Lifetime Supporter

    Sep 29, 2009
    12,713
    7,659
    113
    Ex-Owner (Retired) of a custom metal fab company.
    Columbus, Ohio
    Ratings:
    +7,913 / 1 / -0
    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.
     
  12. BThayer23

    BThayer23 Well-Known Member

    Jun 12, 2009
    1,315
    154
    63
    Civil Engineer
    Durham, NC
    Ratings:
    +155 / 0 / -0
  13. david in germany

    david in germany New Member

    Dec 15, 2010
    250
    5
    0
    Ratings:
    +5 / 0 / -0
    the MAF is NOT before the filter on any of or Minis

    oops I missed p2. lol
     
  14. Justa Jim

    Justa Jim Well-Known Member
    Lifetime Supporter

    May 6, 2009
    7,422
    1,685
    113
    Ratings:
    +1,685 / 0 / -0


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

    Jim
     
  15. Justa Jim

    Justa Jim Well-Known Member
    Lifetime Supporter

    May 6, 2009
    7,422
    1,685
    113
    Ratings:
    +1,685 / 0 / -0
    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
     
  16. BThayer23

    BThayer23 Well-Known Member

    Jun 12, 2009
    1,315
    154
    63
    Civil Engineer
    Durham, NC
    Ratings:
    +155 / 0 / -0
    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.
     
  17. Justa Jim

    Justa Jim Well-Known Member
    Lifetime Supporter

    May 6, 2009
    7,422
    1,685
    113
    Ratings:
    +1,685 / 0 / -0
    No problem Ben. The more information we capture here, the better. :Thumbsup:

    Jim
     
  18. Nathan

    Nathan Founder

    Mar 30, 2009
    25,144
    10,052
    113
    Writer
    Short North
    Ratings:
    +10,069 / 0 / -0
  19. TGS91

    TGS91 New Member

    May 8, 2009
    1,593
    18
    0
    Sales Dude
    St. Louis, MO
    Ratings:
    +18 / 0 / -0
  20. david in germany

    david in germany New Member

    Dec 15, 2010
    250
    5
    0
    Ratings:
    +5 / 0 / -0
    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.
     

Share This Page