the first one yeah.. second one probably not.... may be the mass airflow sensor.
if you replace the coil, replace ALL of the coils.. as well as your spark plugs and wires. it's not smart to replace just one. all sorts of issues can arise. including FIRE on some automobiles. (mostly fords)
of course i say this assuming that when you said coil packs, you have coil on plug ignition. either way, replace....