I have a 2001 WRX Bugeye and at low revs when the engine is at normal running temp there appears to be a slight hesitation. I have tried a new MAF & plugs, the coil packs are ok so does anyone have any ideas? The car has done 66K.

My second question is baout the idle, It seems to be idling at about 500 rpm yet when hooked up to the computer at the subaru garage the reading was between 700-750. Should i trust thier computer or my own rev counter?

Any answers would be much appreciated!!!

 

on top of throtle body there is a round thing it is a idle control valve take it of and spray carb cleaner in it we had same trouble on a p1 sorted it straight away

 

Thanks, is there anywhere i can find a pic or diagramme of this so i know i'm doing the right thing? Cheers

 

Anyone able to help?!