Evann Guessand celebrates scoring for Crystal Palace against Wolves
Image caption, Evann Guessand scored his first goal in the Premier League
At a glance
Wolves' Tolu Arokodare has first-half penalty saved
Ladislav Krejci sent off for visitors after second booking on 61 minutes
Substitute Evann Guessand scores 90th-minute winner
Evann Guessand scored a late winner as Crystal Palace beat 10-man Wolves to claim their first home win since early November.
Palace have been on a poor run of form since manager Oliver Glasner announced last month that he will leave the club when his contract expires in the summer.
Some fans called for him to leave now during their Europa Conference League draw at Zrinjski Mostar in midweek.
Despite saying he intends to stay, Palace turned in another poor performance at Selhurst Park before substitute Guessand popped up to give them a fortunate victory.
Bottom club Wolves spurned a great chance to take a deserved lead in the first half when Tolu Arokodare's tame penalty was saved by Palace goalkeeper Dean Henderson.
Ladislav Krejci then handed the hosts the initiative as the Czech Republic centre-back was sent off just after the hour mark after being booked twice in four minutes.
Yet Palace did not make the breakthrough until the 90th minute, when Ivory Coast forward Guessand turned in Tyrick Mitchell's low cross for his first goal since arriving on loan from Aston Villa in the winter transfer window.
That eased fears of getting dragged into the relegation battle and the discontent among Palace fans, with some holding a banner to complain about both the club's board and Glasner.
Crystal Palace fans holding banners during their win over Wolves which call the club's board "inept" and say that manager Oliver Glasner is "finished"
Image caption, Some Crystal Palace fans are not satisfied with the club's progress since winning their first major honour last May
Three weeks after making a £48m move from Wolves, Jorgen Strand Larsen made his third league appearance for Palace against his former club.
In his first 180 minutes of league football for Palace, he scored more goals (two) than he did in 1405 minutes for Wolves this season (one).
But it looked like the 26-year-old Norway striker was still playing for the league's bottom team as he was starved of service.
He had just one shot, a first-half effort that was blocked on the edge of the box, and Palace's only other chances before the interval came from a Wolves error and a well-worked set-piece.
Yerson Mosquera's underhit backpass put Yeremy Pino through on goal and although he lobbed goalkeeper Jose Sa, it bounced well wide of the open goal.
Will Hughes then played a corner straight to Adam Wharton at the near post and he nudged the ball back to Pino, whose sidefooted effort came back off the far post.
Even after Krejci handed the Eagles control - his second booking was for dissent - Palace failed to show the energy and intensity their fans came to expect under Glasner before last season's FA Cup triumph.
They had just one shot before Wharton played the ball wide for Mitchell and his first-time ball was turned in at the near post by Guessand.
That gave Palace just their second win since early December but this was far from convincing and does little to persuade Palace fans they should stick with Glasner until the end of the season.