Smells rich on cold starts. Leaky injector?
I noticed recently my car smells like it's running rich for a little while when I start it cold. I also noticed that when sitting all night the next day it seems slightly harder to start. I mean it starts right up, it just seems to not do it quite as quickly. I also have a little bit of soot on my exhaust tip. Now, I'm thinking it's a leaking injector filling up the cylinder with fuel while the car is off and that's why it's running rich for a little bit. My plan is to pull the plugs and see if any have signs of a rich condition, but does anynoe have any other ideas or do you think I'm correct in my guess?