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View Full Version : Mass Air Flow (MAF) Cleaning



r32gtr94
05-29-2007, 07:47 PM
When cleaning the mass air flow sensor or what?[headbang]

Thanks

[az]

Ewok_Fetus
05-29-2007, 07:49 PM
Ummm, what?

r32gtr94
05-29-2007, 07:51 PM
The actual sensor that is able to take out from the housing. The one that is held in by two T20H torx screws. Do you spray in the center where the sensor is and let it dry or what?

Thanks in advance. :D

Ewok_Fetus
05-29-2007, 07:54 PM
Nah, just leave it in the housing and put it in a ziplock bag with as close to 98% Isopropal Alcohol as possible... Fill the bag about 1/3 and swish it around inside of the sensor... Let dry overnight.

r32gtr94
05-29-2007, 08:06 PM
Nah, just leave it in the housing and put it in a ziplock bag with as close to 98% Isopropal Alcohol as possible... Fill the bag about 1/3 and swish it around inside of the sensor... Let dry overnight.

I already bought QD electronic cleaner. Should I just spray the whole thing and let it dry?

iin10ded
05-30-2007, 11:33 AM
i used a residue free electrical cleaner. just shot a bunch inside. didn't make any difference either way. i have to assume that if the maf were screwy you'd throw a code.

zzoomz
05-30-2007, 11:58 AM
yea use the cleaner and let it dry. I took mine out of the houseing and let it dry over night. Cleaning my MAF made a huge difference [:)]

LampyB
05-30-2007, 03:01 PM
pull the sensor out of its housing, spray the sh*t out of it with MAF cleaner. i wouldn't recommend putting it in a bag with rubbing alcohol for two reasons:

1) The housing may have grease on it, and if you just let everything sit together in a bag you'll be getting grease on the sensor itself.

2) Some consider rubbing alcohol too rough for the sensor unit. Just go buy some MAF specific cleaner, it's only like $5.


When I cleaned my MAF the car hauled ass afterward, faster than when I purchased it 12,000 miles earlier!

LampyB.

r32gtr94
05-30-2007, 03:17 PM
Cool thanks for the info. Appreciate it.

12Vpawa
05-31-2007, 08:33 AM
Why would you let it dry overnight? Alcohol evaporates in a matter of 1-2 minutes. What do you do after a shower, dry yourself for a week?

Ewok_Fetus
05-31-2007, 03:21 PM
Have you ever cleaned your MAF with alcohol? There are holes all over inside of the MAF that the alcohol can form puddles in. Puddles don't evaporate as quickly as it would if it was on the surface and also, there is less airflow through the internals of the MAF if you have it just sitting on the counter... And alcohol is somewhat of a conductor, not an insulator... That being said, I wouldn't want power going through it with alcohol still in it so it would be BEST to let it sit overnight...