Please help I got in my car a while back 99 Impreza turbo went to drive away the car juddered spluttered and died I got her running and down the garage they changed the O2 sensor MAF is new throttle position sensor next but car runs fine as long as I'm gentle on the throttle any stick at all and power cuts in and out mainly after 4000rpm and fuel consumption sky rockets thought it was a fuel blockage so floored it and let it judder did just under 1/4 tank in a matter of minutes so yeah please help😢