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Old 12-04-2012, 07:51 PM   #15
Scooby Newbie
Member#: 299478
Join Date: Oct 2011
Chapter/Region: E. Canada
Location: Montreal
2008 WRX


My fuel comsumption is back to normal (~19 MPG). It looks like cleaning the MAF and tightening all the worm clamps helped.

I tested for vac leak with brake cleaner. I sprayed all the intake joints twice without noticing any change in the RPM. I then sprayed a little bit of brake cleaner in the airbox to see by how much it would raise the RPM but nothing happened. I am really not sure why, should any brake cleaner work?

I noticed a pretty loud "air" sound when I depress the throttle quickly. It happens for a fraction of a seconds before the RPM starts to rise. I made a video of the sound. I am not sure if it's normal

Here is the AF Learning data from the AP:

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