Car at times when going up in speed acts like it isn't getting fuel and starts to sputter

What is your question?

Car sputters or acts like it isn't getting fuel even if you put foot on the gas pedal more, but car still runs, just takes a little bit to get going and turns on check engine light

What makes this problem better or worse?

Getting near 40 mph

How long has your 2003 Mazda 6 had this problem?

1 Day