it might be b/c you are either switching the clutch too early or too late. it might need a curtain part, this happened to my fathers Honda dx
Low stands for Low Gear or 1st gear in the transmission.(I), is one I have never seen. If you mean 1 then that is 1st gear.
Motor mount, Spark plugs, Spark plug wire
When the shifting linkage is disconnected the car will appear to go into gear but not move. The car will not move when the transmission fluid is low.
Gears in a car change where the powerband (or Torque) are in the RPM range relative to what gear it's in. When a car is put into 1st gear, the "power" in the car is very very low in the RPM range and this is why a car is put into a low gear when climbing a hill or steep grade.
Check for damaged or inoperative idle control valve assembly.
tires need to be balanced or you have a bent rim or a broken belt in your tire
it means that the gear is not able to push up the car due to low preasure in the gear
your car must be stuck in a low gear and not able to switch out
That means that the car is in low gear.
Cooling fan clutch could be seized.
Halogen fluid. When it gets low this can happen.