I have a 2000 accord EX coupe with 126000 miles, I kept maintenance up to date, however I filled up with gas 2 days ago, since the fill up the car has difficulty starting for example it sounds like I have a bad spark plug then it will run fine.
Do I need to relace coil packs at this time or could it be a bad tank of gas.

 

run thru the tank and see if it improves after you fill up

 

could be bad batch of gas, do as vt4,, suggested

 

check your spark plug, check the rotor and cap while you at it.

look for carbon build up.