The Merseysiders hold a 2-1 advantage from the first leg and will travel to Etihad Stadium for the return bout on Wednesday night.
The Spanish winger believes that the Toffees are more than capable of getting a positive result against City - and anyone else for that matter - and is backing he and his teammates to just that when they tackle Manuel Pellegrini's men.
"The results in the Premier League are bad, but we are Everton and we have an amazing team," he said.
"We go to the Etihad for the win and to score because I think if I score it is an important thing.
"If I score then Manchester City will have to score two goals. Why not? We need to win this game and it is possible.
"It's true we can beat anyone.
"We can win every game because we have an amazing team, but in some parts of the game we need to take responsibility and concentrate more. It's more in the head. We need to show more passion."