Hi i have a n/a 4age, I have the car all pulled apart at the moment and realised that the idle air control valve actually has the vacuum line to it completely shut off...... now that would have completely stopped it from working yes? And if so is that going to cause much issues for the engine etc? never really had a problem with it hunting for idle or anything in the past so can i just leave it plugged up or should i try taking out the bungs the previous owner has fitted?