MAF Cleaning
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I have read some threads here about cleaning the MAF sensor, which I am wishing to attempt. Can someone verify that the part in the photo below is the MAF sensor?
MAF sensor?
MAF sensor?
![](http://www.bluelinecomputer.com/images/911tt/911ttmaf.jpg)
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Originally Posted by Woodster
Doc, with your above suggestion, do you happen to have the size of
"right security torx" ?? and where to purchase ??
thanks,
Mk
"right security torx" ?? and where to purchase ??
thanks,
Mk
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Originally Posted by blueline
I have read some threads here about cleaning the MAF sensor, which I am wishing to attempt. Can someone verify that the part in the photo below is the MAF sensor?
It's an easy job and could save you $350-420 for a replacement MAF. I performed these very steps on my MAF last night and my car no longer surges/bucks/hesitates under low-speed throttle and the power seems to come on more smoothly when I give it throttle. More importantly, my Long Term Fuel Trims (LTFT) for both banks have returned back to +/- 1-2% and my Short Term Fuel Trims are no longer +/- 25%.
Pictures of the "old" graphs previous to the cleaning:
![](http://x1.putfile.com/7/20908523447-thumb.jpg)
![](http://x1.putfile.com/7/20908522284-thumb.jpg)
Tools needed:
* T-20 torx socket/driver - "Tamper Proof" style with the hole in the middle - I found mine at Ace Hardware I think.
* A circuit/electronic cleaner that leaves no residue and is safe for plastic - it can be a spray or liquid solution. If you get the spray, make sure that it has the "spray tube" so that you can get to those hard to reach places.
I used this from Ace Hardware:
![](http://ace.imageg.net/graphics/product_images/pACE2-1253364reg.jpg)
Step 1:
Locate and remove the two screws that hold the MAF onto the intake.
![](http://x4.putfile.com/9/27111594690.jpg)
Picture of the MAF's location with screws:
![](http://x4.putfile.com/9/27112002823.jpg)
Step 2:
Remove the MAF and spray with cleaner and/or soak the MAF in a solution for 20-30 minutes. I sprayed mine 3 or 4 times over 10 minutes or so.
You will want to spray as much of the MAF, especially the exposed metal inside the unit (refer to the markings in the below picture), as you can. Let it sit for ~30 minutes to AIR DRY completely and then re-install the MAF.
![](http://x4.putfile.com/9/27112000648.jpg)
Step 3:
Start the car and have fun.
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Originally Posted by yvonnejim
Or just do it connected? If not, how do you remove connection?
Thanks -
Thanks -
![](http://x4.putfile.com/9/27111594690.jpg)