Difficult cold start on 2006 Toyota RAV4

My Rava4 only has 39,000 on it and I'm having problems with a cold start. It used to turn over quickly with 1 crank but now it takes several seconds longer. Once the engine is warm it fires up right away. The other problem I had yesterday, I was making a left turn and it stalled. I was able to get it restarted right away. Putting fuel injector cleaner has not seemed to help. I've been very careful about maintenance every 4,00 miles.

1 answer
Were you able to find out anything about these problems? Did you have it looked at? Have you had any check engine light or other warning lights come on?