Pulsing hesitation under full throttle in Fourth Generation Legacy (2005 - 2009) Posted September 13, 2020 Had the same issue on my 08 spec b. Boost is good until 4k rpm and then would bog/hesitate/stutter. I cleaned the maf and everything went away. Make sure not just to clean the visible wire but the wire/s hidden inside that longish protrusion.
Pulsing hesitation under full throttle
in Fourth Generation Legacy (2005 - 2009)
Posted