Hello, I just noticed this on my drive home last night. Right as I started the car seemed like it was idling low. When I went to leave the parking lot I noticed it was lagging when I accelerated in first small thing through 4th gear. Was a little less severe when the car was warmed up. But still noticable when down shifting. Was going to get the plugs replaced but wanted to know should I do more to help this problem? Timing belt was done 80k miles ago. Has a minor oil leak but nothing serious. Always passes smog no problem. Any ideas would be helpful. Thanks!

 

Is the LED light on the ECU blinking any trouble codes?