Pearson basically belittled our team and our club after the 2-2 draw at the King Power earlier in the season but his team have turned things round recently with three wins and Pearson wanting more.
They are off the bottom, for now, but he said: "It's where we finish at the end of the season that's the most important thing.
"From a run in of 10 or 11 games to go that we've got a run in that we can impact, bearing in mind the sorts of performances that we've put in, the danger is that there is an assumption that our work is done.
"There's a lot of hard work to be done an I think for the integrity of the competition, and to give everybody a realistic chance, we have to be trying to win every game that we play. I wouldn't suggest that we've done anything other than that this season.
"We've found it tough this season, there'd no doubt about that, but we intend to keep the sort of work ethic and level of performance that we've had for the vast majority of the season."
Clarets' boss Dyche heaped praise on the supporters when he spoke ahead of the game. "The fans have been fantastic all season and I don't use my words lightly," he said.
"When you look back, after my first season here and after Charlie Austin was sold, I asked for their support. We mentioned that we needed that one club mentality more than ever, and since then they have been exceptional.
"One thing I have become acutely aware of is that you are Burnley born and that has become even clearer to me whenever I go across the country and the amount of Burnley fans I see. There's a strength in that and it's important the fans play their part.
"The backing and support of the players has allowed them the freedom to go out and play without worrying about positives or negatives. Home and away they have been terrific and all I can ask is that they continue to give us that all the way through the rest of the season and beyond."
It's being billed as a big game with Leicester one of the five clubs down at the bottom and still in the bottom three. "It's as big a game as the last one and th next one," the manager added. "It has more effect because of the position of the teams in the league and the amount of games left, of course, but the reality is every game is a tough one for us."
He'll after make at least one change to the team that has started each of the last five games with Ashley Barnes serving a one match suspension. He said: "Whoever comes in, it's and opportunity for me. It's about how players go about taking that opportunity.
"We want them to be the one who grasps it because that can only be good for the team and the competition in the team."