help for the MAF sensor!

[chriskaven]

Following all the recent MAF failures, I decided I would see if I could source a cheap one from work i.e Ford as I know Ford also use some Bosch MAF sensors.

Firstly, I couldn't find a Ford MAF that had the same voltage-airflow transfer function so I then had a chat with a friend who is a component engineer for Ford MAF sensors.

One interesting thing he mentioned is that one of the general Bosch guidlines for the installation of MAF sensors is that they should be installed vertically +/- 10 degrees. This is to help drain off any condesate that may accumulate on the sensor.

On my ibiza, I noticed that the MAF is mounted almost horizontal!
I can only imagine package constraints and assembly tool access lead to Seat placing the MAF in this location.

I have therefore rotated my MAF sensor round so it is now vertical which I am able to do as I have a dynatwist. With the standard airbox this is not possible as the MAF bolts rather than clamps to the the airbox.

I know condensation doesn't seem to have been a problem with the Vag MAFS (mainly oil contamination or vibration) but it's something thats easy to do, free and might help in the long run!

[sssstew]

excellant chris. thanks for the info. If u find any more keep us informed.

[Copra]

ive been told that the ones Mercs use should work, and are only about £30 odd quid....

[chriskaven]

If you find out any more about the merc MAF and actually fit one let us know. Im sure a lot of people on here would appreciate a 700%+ price reduction:D :D

[vin]

wud this effect the emissions if it not working correctly?

Just wondering as i was told that it cud b that wen my car failed emissions test.

:confused:

[chriskaven]

quite likely as a faulty maf may cause the car to run rich reducing the cat performance considerably.

[mik]

Originally posted by chriskaven
If you find out any more about the merc MAF and actually fit one let us know. Im sure a lot of people on here would appreciate a 700%+ price reduction:D :D

Our ever busy Paulo (prc) has researched this for us. :thumbsup: :)

Read all about it HERE (http://www.seatcupra.net/forums/showthread.php?threadid=28247&highlight=MAF)

[danny842003]

Originally posted by chriskaven
quite likely as a faulty maf may cause the car to run rich reducing the cat performance considerably.

or run to lean depending on what the faulty reading the MAF is giving out. the major problem is its a gradual thing so a lot of people get used to them beinf dufff. and dont realise until they drive another car.

[vin]

Originally posted by danny842003
or run to lean depending on what the faulty reading the MAF is giving out. the major problem is its a gradual thing so a lot of people get used to them beinf dufff. and dont realise until they drive another car.



Is there ne way of checking if it faulty?? i dnt wont change it if it not that.

[Mark@VAGWORX]

Originally posted by vin
Is there ne way of checking if it faulty?? i dnt wont change it if it not that.

Disconnect the MAF completely. If there is a drop in performance then you know that the MAF is fine, if on the other hand the car performs better then you know the MAF isn't healthy. Mine was knackered, performed so much better when i disconnected it.

Got a new one imported from www.ecstuning.com in the end. £75 all in including shipping etc. Job done :D

[vin]

after aving my car diagnosed, it was found to have an intermitent fault with the airflow senser, an the lambda was not up to scratch.


the lambda i can get hold of, but does ne1 no were i can get a maf senser apart from the dealers??? witch will b mega money

i see the link above, but i sorta need it as soon as really.


any1 no of any where???




:cheers:

vince

[vin]

any1????? dont tell me i can only get one from the dealers.:(

[Copra]

that one from the link above - is it better than the std one, or is that just the same?
Mark