[Jason`]

Tenta assim:

pawn Код:

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if(newkeys == KEY_FIRE)
    {
        if(IsPlayerInAnyVehicle(playerid) && GetPlayerState(playerid) == PLAYER_STATE_PASSENGER && GetPlayerTargetPlayer(playerid) != INVALID_PLAYER_ID)
        {
            RemovePlayerFromVehicle(playerid);
        }
    }
    return 1;
}