Hi guys. 1.8 SE AVV engine code, I have a tappety/Ticking sound coming from under the black intake manifold toward the front of engine on right hand side as you look at it, it increases with engine revs. I have no management light on and doesn’t,t appear to affect what little performance it has lol. Does anyone have an idea what this could be? And is it something I should be worried about? Thanks in advance guys.