SQL error? Why?

Why do I get this error? Looks like it's not escaping.

Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '?' at line 2

SELECT item FROM breakup_program_menu INNER JOIN breakup_members ON breakup_program_menu.program = breakup_members.program AND breakup_members.id = ?

Filename: models/Breakup_model.php

Line Number: 19

PHP Code:

public function program_items()
 {
 $sql = $this->db->query("
 SELECT item FROM breakup_program_menu INNER JOIN breakup_members 
 ON breakup_program_menu.program = breakup_members.program AND breakup_members.id = ? ");
 $this->db->query($sql, array(5)); 
 return $query->result();
 }