4 cylinder engines can have both firing orders
the more common one is 1-3-4-2 but some manufacturers have the other firing order
it depends on the manufacture of the position of the crank pin
some reason for it are
less harmonic vibrations
less stress on crank webs
easier manufacturer
for the missing problem run the fault codes and check for ambient temp sensor , maf/vaf sensor or BARO sensor problem
check for the reset button not sure where its located at on your vehicle if you have the owners manual it should show location most the time the button will trip after a accident or even a hard bump
Check the oil level if low top up then turn from left to right to bleed it out ,could have a fluid leak only slight on the pressure sensor or the pipes are going porus
