Yung lumang manual na nabasa ko dati, you had to pump the gas pedal once or twice BEFORE you start the engine, para daw may gas to burn. I think this is for carb engines. Tama ba? I would assume the EFI will take care of the initial gas required to fire up the engine. Paki confirm lang po...
sa OLD carb engines tama yan, pump before start and rev before shut down para may fuel sa main bowl ng carb.
pero sa mga bago na engines, carb man or efi, di mo need gawin yan.
actually it is not adviseable revving up on shut down kung may catallytic converter na ang car ninyo (most new cars have). this can cause an explosion or at least a premature breakdown of the cat.