My Check engine light comes on periodically.
I have been having problems everytime I gas up my car like clockwork.
Fill the tank up (not from empty) I fill up at quarter tank left.
Jump in the car, crank the ignition and the car will not want to fireup unless I hit the gas will cranking. It has happend the last few weeks everytime.

Today the CEL came on and the idle at a stop sounds like my car is ready to die.
I notice a post bellow about the idle highlighting the gas cap.

I have unfortunatly missed two dealer appointment to have it looked at due to my crazy schedule.
Anythoughts?

2007 Mazda 3s 30KMILES yikes.

 

Just a guess based on what you've told us here, but it sounds like you've developed a leak in the fuel recovery system of the car. Could even be the fuel cap itself.

 

that or your MAF sensor is ready to give up on you. If thats the problem then thats a $200 fix

 

Auto Zone has a new MAF for $80 American... the cheapest I've seen them.

 

Whatever it is, your car is under warranty, let the dealer fix it. Make the time to get it done, most dealers offer a loaner, so it shouldn't be that hard to get it handled.