Hello all. I need your help i have a 97 20ltr non turbo auto wagan uk spec. And i have no power mainly at low rpm! when its cold its worse and has it warms it gets a bit better. Wot it does is when i start it witch it has a little problem doing but when its started it idles fine but when i put my foot down on the throttle pedal nothing happends its flat like the igition timing is reatarded if i fether the pedal it will pick up and rev up once its i little it will rev like normal but when i go to pull away i put it in drive and put my foot to the floor it just crawls way real slow after a few meaters it will pick up and acclerate away but as soon as i stop and go to pull away is back. the warmer it gets the better it gets but still not rite by a long way there is no miss fire at all.. I have changed the oil in the engine and the g box i have put new spark plugs changed the TPS sensor and the ECT sensor i have had it in at my local subaru main dealer and they cant find the fault all the tests done was well in the peramiters.. PLEASE HELP

 

Coolant temp sensor?

 

that was the first thing i changed mate.