hi people, started my glanza up the other day and waited for it to warm up. its an auto, was in park and had just fitted an adjustable acuator and a boost gauge, gave it some revs to see if my guage was working and all of a sudden heard a knocking noise. turned it of checked the oil and everything was ok. turned it back of to try and find out where it was coming from but couldnt really tell, it gets worse the more you rev it. any idea's atol what it could be ? another thing is that i just realised it has been running lean, the spark plus were white, could this have caused the damage? cheers aidan