Sepp Blatter has refused to resign as Fifa president following a request from Uefa chief Michel Platini.
The 79-year-old Swiss held an emergency meeting with key Fifa officials on Thursday after world football's governing body
was subjected to yet more damaging corruption claims.
He then met Platini alone, at which point he was urged to quit.
Blatter is seeking a fifth term as president when he takes on Prince Ali bin al-Hussein in Friday's election.
Several influential football figures had called for the vote delayed after seven Fifa officials were arrested in Zurich on Wednesday.
But Uefa, which governs European football, decided on Thursday not to boycott the election and will continue to back Prince Ali.
Caf, which looks after the interests of Africa, has reiterated its backing for Blatter.
So has the Asian Football Confederation, although one of its members, the Australian football federation, has announced its intention to vote for Prince Ali.
Fifa was plunged into fresh crisis on Wednesday when United States authorities indicted 14 people and arrested seven senior football officials on bribery and racketeering charges.
In a separate development, Swiss officials opening criminal proceedings into the bidding process for the 2018 and 2022 World Cup bid processes.
Blatter's decision to chair an emergency meeting with representatives from Fifa's six confederations is significant.
Such gatherings are rare.
It also took place without two of its nominated members.
Jeffrey Webb, president of the North, Central American and Caribbean Association, and Eugenio Figueredo, president of the South American confederation, were both absent after being arrested on Wednesday.
Blatter, who has been in power since 1998, was widely expected to win a fifth term as president before the current crisis engulfed Fifa.
But things are not so clear cut now.
He is understood to have widespread support among Fifa's 209 member associations, but Prince Ali, a Fifa vice-president from Jordan, could benefit from the latest crisis to his world football's governing body.