I have an 06 Chevy Malibu LS with the 3.5, the car has no check engine lights whatsoever but has an issue where it will start only with throttle.

it starts just fine in the mornings, no
throttle needed but come lunch time
or if I go somewhere and shut the car
off, I won't start unless i I give it
some throttle. The fuel pump is
good, has strong pressure with no
loss of pressure. New crank and can
sensors, we have hooked it up to a
scanner but the scanner doesn't
show anything wrong.