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Ecotec MAF...

Discussion in 'VT - VX Holden Commodore (1997 - 2002)' started by Jesterarts, Jan 16, 2007.

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  1. Jan 16, 2007 #1
    Jesterarts

    Jesterarts Your freedom ends where mine begins

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    Hey guys whats going on?

    Just the other day i was bored so i started taking things apart in the car...
    What i found was that in the MAF there was a honecombe mesh at the inlet...
    Whats this for? Its not a sensor of any sort...
    I took it out and car runs fine, no errors or engine lights or nuffin...

    Noticed a tiny increase in acceleration and response...
     
    Jesterarts, Jan 16, 2007
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  2. Jan 16, 2007 #2
    sircruisealotVS

    sircruisealotVS Well-Known Member

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    its there to stablise the airflow and create a more laminar airflow pass the wire sensors on the maf. probably shouldnt have taken it out...but i wouldnt worry about it too much, its not going to hurt anything.
     
    sircruisealotVS, Jan 16, 2007
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  3. Jan 16, 2007 #3
    Jesterarts

    Jesterarts Your freedom ends where mine begins

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    Cheers...
    Im gonna monitor the engine and fuel consumption over the next couple days...
    If it starts playing up i will put it back in...
     
    Jesterarts, Jan 16, 2007
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  4. Jan 16, 2007 #4
    Doctor Bob

    Doctor Bob Grandpa

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    it allows the MAF to measure the airflow correctly, it may feel ok but the airflow measurements will be wrong.

    Rob
     
    Doctor Bob, Jan 16, 2007
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  5. Jan 18, 2007 #5
    vtcommodo3800

    vtcommodo3800 Got me a v8!

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    it does do anything it is just to quiten the sucking of air noise down. Cheers
     
    vtcommodo3800, Jan 18, 2007
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  6. Jan 19, 2007 #6
    Doctor Bob

    Doctor Bob Grandpa

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    no its not, read the second post
     
    Doctor Bob, Jan 19, 2007
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  7. Jan 19, 2007 #7
    Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    What effect will this have? I have taken mine out too. It's been out for about 2 months, haven't noticed any ill effects, fuel consumption seems to be the same, no error codes, just a bit louder sucking noise at idle with the bonnet up. And no I don't believe it is just to quieten the intake noise.
     
    Not_An_Abba_Fan, Jan 19, 2007
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  8. Jan 19, 2007 #8
    GOTMYN

    GOTMYN Stab it and Steer...

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    Interesting.

    I was Suprised to see this on my VY when I removed the Tube to fit a Pod Filter!! My Immediate thoughts were that it looked restrictive. But Didn't feel removing it was an option. Was it easy to remove? Did any of you cause any damage doing so?? :thumbsup:
     
    GOTMYN, Jan 19, 2007
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  9. Jan 19, 2007 #9
    Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    It is only a clip that holds it in but the material is fairly soft so you can do damage if the screw driver slips. Maybe it's not such a good idea to remove it. I may be putting mine back pending the answer from Dr Bob
     
    Not_An_Abba_Fan, Jan 19, 2007
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  10. Jan 19, 2007 #10
    Doctor Bob

    Doctor Bob Grandpa

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    think about it this way, the mesh is there when the MAF is calibated & the figures generated by this are used in the engine calibration, if you remove the mesh allowing random turbulence over the sensor how can it be correct?
    Sometimes they will run ok, sometimes not.
    if you feel it goes better & still runs ok do it
    but be prepared to replace it if the sensor gets damaged or fails prematurely.

    Rob
     
    Doctor Bob, Jan 19, 2007
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  11. Jan 19, 2007 #11
    BigGuns

    BigGuns Roids

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    Not Keen.

    Yeh, Thanks Rob, Will prolly leave mine alone. Prolly wouldn't be any good for the engine getting different fuel ratios evry couple of minutes!!:thumbsup:
     
    BigGuns, Jan 19, 2007
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  12. Jan 19, 2007 #12
    Jesterarts

    Jesterarts Your freedom ends where mine begins

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    I'll guinee pig it for awhile and see what happens...

    So far im on a second tank of fuel, no change in consumption, more power taking off and getting to speed....

    I would say that slightly louded induction noise but keep in mind i have the big SS induction CAI which straight away made the induction noise louder after fitting...

    Took it appart today so see if the sensor fitting and wires where not stretched of looking irregular...

    So far so good...

    But as Dr Bob said, this is probably not recommended... this is just me playing around and i don't want to be the cause of someone tkaing it out and their car or sensor biting the dust!

    Cheers
     
    Jesterarts, Jan 19, 2007
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  13. Jan 19, 2007 #13
    Jesterarts

    Jesterarts Your freedom ends where mine begins

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    Yeah, the honeycombe material is very soft and it splits really easy....

    I popped mine out without damaging the mesh...

    As i said and Dr Bob said, play with this at your own risk... I don't want people doing it, their cars running badly and then them turning around to me and going "But you said it was fine..."
     
    Jesterarts, Jan 19, 2007
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  14. Jan 20, 2007 #14
    GOTMYN

    GOTMYN Stab it and Steer...

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    Keep playin!!

    yeh, Cheers, I will leave mine alone for now. Car seems to go pretty well as it is. Think I have a freek!! Beats a mates VS 5.0 with extractors exhaust cam chip and 3.9 gears!!:thumbsup:
     
    GOTMYN, Jan 20, 2007
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  15. Jan 28, 2007 #15
    Jesterarts

    Jesterarts Your freedom ends where mine begins

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    Ok, here is an update on my car running without the honeycombe filter in the maf...

    Power = up
    Throttle response = up
    Economy = up!

    I have gotten 530km from a tank and i still have 1/4, yes quater of a tank left!!!!

    And im driving it as hard if not harder than when the filter was it caus i really wanted to see the effects!

    Never the less if anyone decides to do this mod, do so at your own risk.

    I have a CAI and exhaust which probably helps the situation but before i took the mesh out i was happy if i got 500km from a tank, so im over the moon at the moment!
     
    Jesterarts, Jan 28, 2007
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  16. Jan 30, 2007 #16
    beeks

    beeks Banned

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    What a crock of ****,talk about 'the Placebo effect'.You were warned about possible situations from a qualified technician,yet still have no inclanation of what it is you are measuring.
    It was part of the air flow programing and is meant to be in place.How irresponsible to be plugging this as a so called 'mod'.
    If that's your idea of a mod,you are a very naieve individual.
     
    beeks, Jan 30, 2007
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  17. Jan 30, 2007 #17
    VSteve

    VSteve New Member

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    What's wrong with experimenting? Infact he has seen a positive improvement by performing this modification. So whats the problem? I also fail to see how it's irresponsible to be plugging it as a 'mod'? If its not a modification then what would you call it? He also stated very clearly that anyone who wants to try it to do so at their own risk.
     
    VSteve, Jan 30, 2007
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  18. Jan 30, 2007 #18
    Jesterarts

    Jesterarts Your freedom ends where mine begins

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    Beeks, firstly look up the meaning of "placebo" before you use it.
    Secondly, im pretty sure since i modified the MAF it counts as a "mod"

    Yes, i understand that the possible outcome of me experimenting with the MAF could yeild negative effects on the engine, i still have yet to see any of these negative effects.

    On the side of caution, at my next service im going to inform my mechanic about what i did and have him test the exhaust temp, see if my mixture is running too lean, etc.

    Overall so far, i just filled up this morning with with 50km DTE showing, 8L of fuel showing to be left and my total trip of this tank is 597km.

    I have to say i'm happy with this result considering before my "experimenting" i was getting about 500 - 520 km from a tank.

    On that note, this time i have filled up at a different servics station, a 7-11 this time instead of a caltex and i will see what figures i get after.

    So, no beeks, i don't think this is "A crock of ***" and i don't think you are in a position to suggest.

    If you have evidence of negative effects and information that contradicts my findings then you can start telling me what is and isn't "A crock of ****".

    Laters
     
    Jesterarts, Jan 30, 2007
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  19. Jan 30, 2007 #19
    Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    It amazes me how many people remove integral parts of an emission control system and plug this as a 'mod' too ie: knocking the guts out of a cat. I'm not knocking Jesterarts for taking the honeycomb out, I did it myself, although I have since put it back....personally on my VS I have not noticed any difference. If you have to remove things, think of why is that there in the first place, what does it do, try to find out and be prepared for any legal ramifications. Some things can be removed safely and for a gain, some things are thought to make a difference only because it was probably faulty in the first place making the car run badly so removing it sees an improvement. If you are going to remove of modify something, find out as much as you can about that item and what it's role is before you do any damage to your car, yourself or the environment.
     
    Not_An_Abba_Fan, Jan 30, 2007
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  20. Jan 30, 2007 #20
    Jesterarts

    Jesterarts Your freedom ends where mine begins

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    Fair enough, as i said i still have to get the checked out properly by the mechanic.

    If he finds that the car doesn't perform the way it should or doesn't meet EPA standards then its going back in.

    What other mod's did you have on the VS?

    As i said it could be in conjunction with the exhaust and the CAI that i got better performance.

    As for the MAF not working before i don't beleive so as it was running with the same power, response and economy of a stock.

    I dunno, i'll update soon as i take it to my mechanic.

    Cheers
     
    Jesterarts, Jan 30, 2007
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