If the plugs and wires haven't been replaced for a long time, it could be the problem. Keep in mind, when the car is first started, the computer runs the fuel mixture richer until the car starts to warm up. If the plugs are old, they may not be able to burn all of the fuel.
Please understand, with this type of problem, it could be many things. The problem is the computer hasn't picked up on the problem for some reason, so we don't have any hard evidence. This is one of those situations that one needs to try to make educated guesses, or wait until the problem gets bad enough to set a computer code.
Please let me know what you find. And, I wish I had an easier way to do it for you.
Wednesday, March 25th, 2009 AT 8:53 PM