Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

Clean your MAF

Discussion in 'VR - VS Holden Commodore (1993 - 1997)' started by immortality, Apr 14, 2009.

  1. immortality

    immortality Moderator Staff Member

    Messages:
    12,695
    Likes Received:
    1,225
    Trophy Points:
    113
    Joined:
    Apr 15, 2006
    Location:
    Sth Auck, NZ
    Members Ride:
    HSV VS Senator, VX s2 Calais S/C
    if your car has a MAF sensor, clean it. it takes 15 minutes and the difference can be like black and white. this is especially true if you run any sort of aftermarket oiled filter.

    to cut a long story short, the missus car was slowly getting more sluggish, throttle response was getting worse, fuel economy was dropping like a brick (not really but it sounded good :p ) this was all accumulative over a long period of time so wasn't noticed.

    when i removed the MAF sensor one of the 3 Hot wires was black with crap, the 2nd was approx 70% covered and the 3rd maybe 20%. there is proper MAF cleaner that can be purchased from your local automotive outlet. otherwise use electrical contact cleaner. me, i didn't have either so i used some carb cleaner, then i blew it out with LOW pressure air to ensure all the solvent had completly dried off.

    first start was quicker, don't know if this was related to that problem, as soon as i gave it some gas it moved, shock horror:D pulled out of the street (rolling)i gave it a little gas and she kicked down a gear and went. previously this would have required a fair amount of throttle to achieve the same thing. long term fuel usage sat at 13.6ltrs/100km on the trip computer. i have reset so we will see what happens there

    happy cleaning:thumbsup:
     
    vsiicalais and ephect like this.
  2. delcowizzid

    delcowizzid on holiday

    Messages:
    6,543
    Likes Received:
    197
    Trophy Points:
    63
    Joined:
    Jul 8, 2008
    Location:
    NZ
    Members Ride:
    в∞ѕтεכ √&
    nice now just to get that new brake booster in your car now aye.its allways good when you find a simple fix.as far as im aware the frequency MAFS arnt actually hot wire like the old vl'sL they have a chip in there that senses the air draging over the wires when they get covered in crud they get thicker and stickier meaning they get pulled on harder by the air flowing past them pulling harder on the chip.but all in all allways good to clean them.
     
  3. MG's VH Wag

    MG's VH Wag Member

    Messages:
    505
    Likes Received:
    0
    Trophy Points:
    16
    Joined:
    Oct 20, 2007
    Location:
    Ballarat
    Members Ride:
    VR Commodore Exec
    Might sound a bit stupid but where is the MAF sensor located lol? I want to clean it now
     
  4. delcowizzid

    delcowizzid on holiday

    Messages:
    6,543
    Likes Received:
    197
    Trophy Points:
    63
    Joined:
    Jul 8, 2008
    Location:
    NZ
    Members Ride:
    в∞ѕтεכ √&
    if you are meaning on youre VR there isnt one on VR .VS upwards
     
  5. MG's VH Wag

    MG's VH Wag Member

    Messages:
    505
    Likes Received:
    0
    Trophy Points:
    16
    Joined:
    Oct 20, 2007
    Location:
    Ballarat
    Members Ride:
    VR Commodore Exec
    Ok thanks, no wonder i didn't know where it was lol.
     
  6. immortality

    immortality Moderator Staff Member

    Messages:
    12,695
    Likes Received:
    1,225
    Trophy Points:
    113
    Joined:
    Apr 15, 2006
    Location:
    Sth Auck, NZ
    Members Ride:
    HSV VS Senator, VX s2 Calais S/C
    after having a chat with Steve for MACE, apparently this is also a problem on cars with standard airfilters. definitly worthchecking.
     
  7. DannyboyDS

    DannyboyDS Just hand me the pliers.

    Messages:
    2,255
    Likes Received:
    31
    Trophy Points:
    0
    Joined:
    Feb 26, 2007
    Location:
    Melbourne
    Members Ride:
    VS Berlina
    someone should tell CXCXCX....... he is having fuel consumption issues.
     
  8. Gus The Snail

    Gus The Snail Born to be dizlegzic

    Messages:
    499
    Likes Received:
    4
    Trophy Points:
    18
    Joined:
    Aug 29, 2007
    Location:
    ipswich - on the right side of the tracks
    Members Ride:
    VS ute S2 1996
    any pics of this item and where it is located on a VS please???
     
  9. padrickz88

    padrickz88 Rick =]

    Messages:
    1,555
    Likes Received:
    34
    Trophy Points:
    0
    Joined:
    Dec 15, 2005
    Location:
    sunshine, melbourne
    Members Ride:
    VN V6, nothing special
    its located on your intake piping from the airbox to the throttle body......

    might have a look at my mums on her vt, her economy isn't great...
     
  10. immortality

    immortality Moderator Staff Member

    Messages:
    12,695
    Likes Received:
    1,225
    Trophy Points:
    113
    Joined:
    Apr 15, 2006
    Location:
    Sth Auck, NZ
    Members Ride:
    HSV VS Senator, VX s2 Calais S/C
    it's fitted in the intake pipe, just after the filter box. gotta undo 2 hose clamps and remove 1 plug at the bottom.

    when cleaning be very carefull. the wires are very thin and you'll be ****ed if you brake one.

    from now on, i'll be cleaning mine when i do the oil change. should ensure no further problems in that area
     
  11. immortality

    immortality Moderator Staff Member

    Messages:
    12,695
    Likes Received:
    1,225
    Trophy Points:
    113
    Joined:
    Apr 15, 2006
    Location:
    Sth Auck, NZ
    Members Ride:
    HSV VS Senator, VX s2 Calais S/C
    i wish, the missus just got her new lounge suite. she thinks the car can wait:p
     
  12. PSYKO PHOENIX

    PSYKO PHOENIX AHHHH brain fart

    Messages:
    468
    Likes Received:
    3
    Trophy Points:
    0
    Joined:
    Nov 15, 2008
    Location:
    Auckland, NZ
    Members Ride:
    1995 VS Commodore v6 ecotec
    gutted about the lounge suite!

    any chance of a few quick pics? i wanna make sure ive got it all sorted before i atempt to clean the lil buggers!
     
  13. Chappo_1

    Chappo_1 Member

    Messages:
    84
    Likes Received:
    0
    Trophy Points:
    6
    Joined:
    Jan 14, 2009
    Location:
    Lake Macquarie NSW
    Members Ride:
    VS II Ute V6 1996
    I’ve pinched a picture from the painting engine cover thread. I have drawn a green circle around the MAF. First time I ahve attached an image.....hope it works.
    Cheers.
     
  14. PSYKO PHOENIX

    PSYKO PHOENIX AHHHH brain fart

    Messages:
    468
    Likes Received:
    3
    Trophy Points:
    0
    Joined:
    Nov 15, 2008
    Location:
    Auckland, NZ
    Members Ride:
    1995 VS Commodore v6 ecotec
    nice lookin engine!!!

    so i just unscrew that and use a bit of maf cleaner to clean the wires??
     
  15. Magifil

    Magifil Donating Member

    Messages:
    47
    Likes Received:
    0
    Trophy Points:
    6
    Joined:
    Jul 27, 2008
    Location:
    Sunbury Vic
    Members Ride:
    1998 VS Series III Caprice
    Correct, two clamps to undo and disconnect the sensor wires. Then there is a mesh thingy held in by a circlip. Carefully lever the circlip out, remove mesh and wash away. Make sure its all dry before you reinstall.
     
  16. danja

    danja Swerves for gay koalas

    Messages:
    1,786
    Likes Received:
    50
    Trophy Points:
    48
    Joined:
    Jan 26, 2006
    Location:
    Sydney
    Members Ride:
    CBF 250 and a Levin ZR
    I give mine a squirt every time I do the oil, only takes 5 minutes and does make a difference. If you do it regularly you won't notice much, but if you go from very dirty to clean you'll notice it, doing it regularly keeps it top notch all the time.

    I've tried the specialised MAF cleaner, I'm convinced its just rebadged electrical contact cleaner sold for twice the price - smells the same, looks the same, evaporates the same. So contact cleaner for me, never tried carby cleaner.
     
  17. delcowizzid

    delcowizzid on holiday

    Messages:
    6,543
    Likes Received:
    197
    Trophy Points:
    63
    Joined:
    Jul 8, 2008
    Location:
    NZ
    Members Ride:
    в∞ѕтεכ √&
    ide be very cautious about using carby cleaner as it melts plastic and just about anything else due to the toulene in it and im sure buying the proper cleaner is cheaper than a MAF sensor when you melt something important inside it.
     
  18. immortality

    immortality Moderator Staff Member

    Messages:
    12,695
    Likes Received:
    1,225
    Trophy Points:
    113
    Joined:
    Apr 15, 2006
    Location:
    Sth Auck, NZ
    Members Ride:
    HSV VS Senator, VX s2 Calais S/C
    yeah, i woulda used contact cleaner but i was out and hadn't brought any new cans yet so carb cleaner it was. having said that, i spray'd it straight through the MAF so very little actually acumulates inside the MAF sensor area.

    i'd certainly suggest it should be part of a regular maint shedule. i wonder if Holden do it when they service cars?
     
  19. ephect

    ephect Donating Member

    Messages:
    4,776
    Likes Received:
    137
    Trophy Points:
    63
    Joined:
    Jul 27, 2006
    Location:
    Melbourne
    Members Ride:
    VS Acclaim V6
    hah i highly doubt it, they're lucking to lift the bonnet :p

    will put this on the todo list this weekend, got some free time on sunday providing the weather holds up.
     
  20. 89 vn

    89 vn New Member

    Messages:
    392
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Dec 17, 2007
    Members Ride:
    89 VN Exec, 94 VR SS
    MAF in the same spot in a V8 VS?, as they have much shorter intake pipe
     

Share This Page