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Cleaning MAF sensor element
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Author:  jdfiesta [ Sat Jul 01, 2006 8:00 am ]
Post subject:  Cleaning MAF sensor element

Seems to be a very common problem with these failling, causing 'misfires' and rough running

1. In true Haynes style, disconnect battery

2. Unplug MAF sensor

3. Using a T25(i think) security Torx bit remove the 2 screws securing the black plastic sensor housing to the maf housing

4. Gently lift sensor housing from MAF housing.

5. Using a cotton bud or something similar, gently, very gently, clean the 2 'hot wires' on the underside of the sensor housing. i've been advised against using any cleaning products as these can leave a film on the wires

6. When all dirt has been removed, refit sensor into MAF housing and secur using the Torx screws.

7. Plug MAF back in

8. Reconnect battery and start engine.

After going through it's base checks and setups(approx 10 miles) engine should be ok


HTH
JJ

Author:  richard_p88 [ Wed May 02, 2007 12:31 pm ]
Post subject: 

Can't stress enough how much of a difference this made, and it costs nothing if you already have the torx bits.

I used a T20 security bit.

Author:  Kram [ Fri Jul 06, 2007 1:49 pm ]
Post subject: 

Done this yesterday while waiting for something else. only one side of the wire was dirty (think facing inlet) and it was quite thick for the size of wire, came off very easly but looked like soot/carbon... :o

ECU is still relearning so no idea if it made any difference, but fuel smells less rich.

Author:  d00ner [ Fri Jun 06, 2008 12:51 pm ]
Post subject:  Re: Cleaning MAF sensor element

would this stop this problem?

escort si, when you put the clutch down it keeps the revs up, and sort of free revs on its own. normally to about 3-4k then it dies down a bit.

Author:  Mattyboy Esq [ Fri Jun 06, 2008 2:25 pm ]
Post subject:  Re: Cleaning MAF sensor element

No, sounds like the ISCV needs a clean! :)

Author:  DANIELP1991 [ Sat Jun 21, 2008 11:39 am ]
Post subject:  Re: Cleaning MAF sensor element

does cleaning the maf sensor, stop the car from running really rich??

Author:  d00ner [ Mon Jun 23, 2008 12:18 pm ]
Post subject:  Re: Cleaning MAF sensor element

Mattyboy Esq wrote:
No, sounds like the ISCV needs a clean! :)


what be this then? :sigh: sorry im foolish :lol:

Author:  DANIELP1991 [ Thu Jun 26, 2008 9:51 pm ]
Post subject:  Re: Cleaning MAF sensor element

on the side of the throttle body,controls the air goin in the engine, i cleaned mine up a few months ago coz my car kept cuttin out, apparently its suposed to be cleaned everytime the car is serviced

Author:  DANIELP1991 [ Fri Nov 07, 2008 1:06 pm ]
Post subject:  Re: Cleaning MAF sensor element

cleaned my maf the other day in college. only the 1 wire was dirty so i cleaned that with a cotton bud with nail varnish remover on it, then with brake cleaner.

seems 2 run smoother now! and seems quieter.

Author:  elPaulio [ Fri Nov 07, 2008 1:50 pm ]
Post subject:  Re: Cleaning MAF sensor element

The best thing I cn think of for using to clean the MAF or any engine sensor for that matter is IPA (Iso-Propyl Alcohol) It evaporate completly and therefore doesn't leave any residue, but is very effective at removing most contaminants!

Can be had from Maplins for a few quid!

Paul :halo:

Author:  Trissy_si [ Tue Nov 11, 2008 1:19 pm ]
Post subject:  Re: Cleaning MAF sensor element

My contacts were black after air filter problems.

I just used a cotton bud with no cleaner, removed all the dirt fine, it runs and pulls like a dream now.

Author:  THE HOG [ Mon Mar 09, 2009 9:28 pm ]
Post subject:  Re: Cleaning MAF sensor element

DANIELP1991 wrote:
on the side of the throttle body,controls the air goin in the engine, i cleaned mine up a few months ago coz my car kept cuttin out, apparently its suposed to be cleaned everytime the car is serviced


what would be best for cleaning the throttle body as in cleaners

Author:  elPaulio [ Wed Mar 11, 2009 9:27 pm ]
Post subject:  Re: Cleaning MAF sensor element

Hi Hog,

I would use IPA on a cotton wool ball as its soft enough to do no damage but will scour enough to clean up. Just remember to keep changing them as they'll get pretty mockit pretty quickly ;)

Paul :thumbsup:

Author:  THE HOG [ Wed Mar 11, 2009 9:53 pm ]
Post subject:  Re: Cleaning MAF sensor element

elPaulio wrote:
Hi Hog,

I would use IPA on a cotton wool ball as its soft enough to do no damage but will scour enough to clean up. Just remember to keep changing them as they'll get pretty mockit pretty quickly ;)

Paul :thumbsup:


nice 1 m8 al get to it asap as i took my k&n off today and the tb is filthy lol

Author:  THE HOG [ Sat Mar 14, 2009 10:45 pm ]
Post subject:  Re: Cleaning MAF sensor element

elPaulio wrote:
Hi Hog,

I would use IPA on a cotton wool ball as its soft enough to do no damage but will scour enough to clean up. Just remember to keep changing them as they'll get pretty mockit pretty quickly ;)

Paul :thumbsup:


i ordered some ipa today will be here thursday.
But he gave me some zoff adhesive remover wipes would they be ok for the tb's.
Does it have to be that soft that you have to use cotton wool it say's on the back that it had ipa on them :thumbsup:

Author:  The Loumiester [ Mon Sep 20, 2010 6:33 pm ]
Post subject:  Re: Cleaning MAF sensor element

since iv one this recently i thought i might aswell post the pic on here for future reference to show these wires :thumbsup:
Image

Author:  daz57992 [ Mon Dec 19, 2011 10:42 pm ]
Post subject:  Re: Cleaning MAF sensor element

So at what point of rotation should it be refitted please? It can move clockwise/anticlockwise.
Does it matter please ?

Author:  - Danny Boy - [ Mon Dec 19, 2011 11:25 pm ]
Post subject:  Re: Cleaning MAF sensor element

It only goes in one way

Author:  The Loumiester [ Tue Dec 20, 2011 10:45 am ]
Post subject:  Re: Cleaning MAF sensor element

Yeah its just a simple pull out, put back in.
Image

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