[SupperRobin6394]

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
if(newkeys == KEY_SUBMISSION)
{
if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
{
new vehicle;
vehicle = GetPlayerVehicleID(playerid);
new lights, alarms, doors, bonnet, boot, objective;
new engine;
GetVehicleParamsEx(vehicle, engine, lights, alarms, doors, bonnet, boot, objective);

if(engine == 0)//If the engine is off
{
SetVehicleParamsEx(vehicle, 1, lights, alarms, doors, bonnet, boot, objective);

}
else if(engine == 1)
{
SetVehicleParamsEx(vehicle, 0, lights, alarms, doors, bonnet, boot, objective);

}

}
}

return 1;
}