Hi all, i wonder if someone can help, i have a non turbo impreza, its only been on the road about 5 weeks, prob;lem is, it seems to be very hesitant below 4000 rpm. After that it pulls like id expect. It used to only do it in hot weather but now does it all the time anyone have any idea what it could be?
Regards

 

Not sure mate
I had hesitation but had brdevelopment map and all hunky dorey now
Not sure how non turbo works though map wise etc

 

might be your maf sensor mate but to be honest it could be a number of things best to get a mechanic to look over it mate