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General => The garage => Topic started by: topman2u on 20 November 2011, 18:30

Title: do you have to have this conneceted all the time !!!!
Post by: topman2u on 20 November 2011, 18:30
i was woundering do you have to have the maf thats connected to your air filter box connected all the time or can you run your car without it connected 24/7 !! what damage can it do if any !!
Title: Re: do you have to have this conneceted all the time !!!!
Post by: mcgee9t2 on 20 November 2011, 18:31
i wouldnt disconnect it for too long.
realisticly needs to be there otherwise why would vw put a sensor there
Title: Re: do you have to have this conneceted all the time !!!!
Post by: dom on 20 November 2011, 19:00
Is yours faulty? It will be ok to run it temporarily but as already said make sure you replace it asap :wink:
Title: Re: do you have to have this conneceted all the time !!!!
Post by: topman2u on 20 November 2011, 19:05
Is yours faulty? It will be ok to run it temporarily but as already said make sure you replace it asap :wink:

well i think its been runnng alittle slow and alittle jumpy !! but the mrs run the feul low last week so i filled her up and put some red x in it an took it to see if that sorts her out
Title: Re: do you have to have this conneceted all the time !!!!
Post by: dom on 20 November 2011, 19:28
Is yours faulty? It will be ok to run it temporarily but as already said make sure you replace it asap :wink:

well i think its been runnng alittle slow and alittle jumpy !! but the mrs run the feul low last week so i filled her up and put some red x in it an took it to see if that sorts her out

If the maf is not working correctly then by unplugging it you should see an improvement, try driving it for a few days with it unplugged and see if it gets better. If it does you have your problem, if it doesn't plug it back in and get it scanned with Vagcom.

If you replace your maf, make sure you get a Bosch one :wink:
Title: Re: do you have to have this conneceted all the time !!!!
Post by: topher on 20 November 2011, 19:32
An unplugged maf can also mask problems that lie elsewhere, usually intake related. Do not rely on the unplugging method to diagnose a faulty maf.
Title: Re: do you have to have this conneceted all the time !!!!
Post by: mcgee9t2 on 20 November 2011, 19:40
Is yours faulty? It will be ok to run it temporarily but as already said make sure you replace it asap :wink:

well i think its been runnng alittle slow and alittle jumpy !! but the mrs run the feul low last week so i filled her up and put some red x in it an took it to see if that sorts her out

If the maf is not working correctly then by unplugging it you should see an improvement, try driving it for a few days with it unplugged and see if it gets better. If it does you have your problem, if it doesn't plug it back in and get it scanned with Vagcom.

If you replace your maf, make sure you get a Bosch one :wink:


i wouldnt even run it for that long unplugged, mine was running rough so i unpluged it drove about 1 mile from macdonalds back to uni, no more rough idle ect and i know that my maf is buggard so ive plugged it back in and orderd a new one
Title: Re: do you have to have this conneceted all the time !!!!
Post by: dom on 20 November 2011, 19:44
An unplugged maf can also mask problems that lie elsewhere, usually intake related. Do not rely on the unplugging method to diagnose a faulty maf.

Listen to this guy and he's forgotten more than I know about engines :grin:
Title: Re: do you have to have this conneceted all the time !!!!
Post by: Wayne on 20 November 2011, 19:55
i wouldnt even run it for that long unplugged, mine was running rough so i unpluged it drove about 1 mile from macdonalds back to uni, no more rough idle ect and i know that my maf is buggard so ive plugged it back in and orderd a new one

That is what I did, 2 miles was enough to feel the difference.
Title: Re: do you have to have this conneceted all the time !!!!
Post by: Bellend on 20 November 2011, 22:37
An unplugged maf can also mask problems that lie elsewhere, usually intake related. Do not rely on the unplugging method to diagnose a faulty maf.

This.

You can also disconnect it, have it make no difference and it still be a faulty MAF.
Title: Re: do you have to have this conneceted all the time !!!!
Post by: topman2u on 21 November 2011, 08:29
An unplugged maf can also mask problems that lie elsewhere, usually intake related. Do not rely on the unplugging method to diagnose a faulty maf.

This.

You can also disconnect it, have it make no difference and it still be a faulty MAF.

thats true as ive had mine unplugged for about 3miles and it felt worse !! so does it mean that the maf is ok !! :undecided: