Was cleaning my engine bay and found that the pipe that runs from the top of the air filter housing directly into the throttle body and breather wasn't even put on properly (at the air filter end) and must of been sucking in some un-filtered air in to the TB. I only noticed when cleaning the underside of it. I have since taken the pipe off, cleaned it as it had a bit of oil around the lip (Is this Normal through oil vapour?) I have dried it thoroughly and stuck it back on properly and it seems to be a little more responsive and seems to pull for longer, although this may just be a placebo affect.
I am a bit worried tho in case it has sucked in any crap and may ruin something. Will be going for an oil change now as soon as I can get it in/DIY. Am I right to be worried or will it be ok? It feels ok to me but I am no expert!!
Any help appreciated.