I've searched the forum on this and couldn't really find anything concrete, but my car has developed an fluctuating idle. It seems to bounce between 600 and 1100 rpm when stopped.

It does it warm or cold, but it's find while driving. That being said, I do have a to do list and have no clue if one of these things may be causing it.

Replace fuel vent hoses
Adjust valve timing
Change water pump to aluminum thingy hose.

Thank you in advance.