"We had two good games recently, at Fenerbahce and against Fulham, and we just want to continue that run. We go into the game to win it without thinking about the result of the first game.
"It's an important time for us. We want to be in the group stage and that demands attitude and commitment and desire to play the game with full power, like we love to do."
If Arsenal do complete the virtual formality of qualification, it would be the 16th consecutive year that they have made the group phase of the Champions League.
"It shows consistency," said Wenger. "Top level sport is just about consistency. The first game against Fenerbahce was not as comfortable as people saw on television. It was highly committed. I have big experience in the Champions League and, to knock someone out, you need attitude and commitment. That's what is at stake for us."
Wenger hopes to sign a new striker before the transfer window closes next week but said Lukas Podolski and Olivier Giroud were proving their quality after scoring five goals in the opening three matches of Arsenal's season.
"By scoring the goals, they're proving a point," he said. "By being efficient offensively, they're proving a point. I'm sure of their quality, but what people are worried about is not only the quality but the numbers over a whole season."