Hi guys,

Have been searching around and I only seem to find boost/fuel cut as a reason for throttle problems though my problem is a tad weird.

I go to accelerate the car foot fully down (I usually squeeze the pedal down to wot as its fly-by-wire throttle and doesn't respond to sudden movement as well as the older throttle cable/linkage).

As I am doing this the car accelerates extremely slowly in 1st and 2nd (much slower than I am used to) and hesistates/stutters as it rises revs (between 2 and 3k)...at 4k-5k its still accelerating slowly (again, slower than it should be doing this)

I know boost gauges are not accurate by if its any help mine is showing I am hitting my 15psi at around 2.5k

My only guess is either bad batch of fuel or the ecu is in limp mode (not getting any kind of warning/CEL lights)

Car is a 06 wrx, only power mods are a 3" Butler TBE, Walbro Pump and EcuTek tune.

Im boggled and worried
-Shane.