[Evocator]

Код:

CMD:resetveh(playerid, params[])
{
	new 
		id;

	if (sscanf(params, "i", id))
		return SendClientMessage(playerid, -1, "/resetveh vehid");


	mysql_format(g_SQL, Query, sizeof (Query), "UPDATE `table` SET `vVechime` = `0` WHERE `vehicle_field` = `%i`", id);
	mysql_tquery(g_SQL, Query);

	return 1;
}

Replace "table" with your table name, and "vehicle_field" with your vehicle id or whatever that is unique.