Good day, i have a problem with my WRX, model year 2001 with a 2005 engine and 2007 turbine from all wrx parts. the 2001 engine blew up with the former owner and he swapped the above parts into it, and now when i buy it the car is pretty much "sluggish"

if i press lightly on the gas pedal it seem to be ok, with this "sluggish" feeling coming in around 3000 rpm to 4500 rpm after that it kicks like a horse with a bit of "choking".

if i floor it, then its basicly choking all the way.

so i was wandering, if anyone here could have the slightest idea what is bothering my scooby?

was suggested that it was the MAP, that i needed to remap it after the changes. could that be true that the map changes just from switching an engine?

sincerely and best regards
Opie

 

Sound like the maf sensor to me bud