Hi everyone

i trust you guys are well, I have a 2001 Subaru Impreza 2lt gx (n/a ej20) wagon it’s a manual

car was rough and had no power

fault code was knock sensor that was replaced
plug leads two was broken, all was replaced
new plugs
filters
fuel pump
new oil

now the car has this flat spot below 2500rpm
its like I will put the accelerator all the way down but it will crawl for a few seconds then suddenly it will go . There are no codes and incline traffic is the worse

the idle is fine
do you think it might be TPs or timing is a tooth off
all advice is much appreciated

 

maybe MAF/MAP, not sure if yours has MAF or map sorry not sure of year of yours.

 

it’s a 2001 ej 20 sohc