The German magazine Der Spiegel, using material purportedly obtained from the whistleblowing outlet Football Leaks, reported in November that City had set up sponsorship deals to circumvent regulations limiting how much money owners can put into a club.
City responded to that report by saying there had been an "organised and clear" attempt to damage the club's reputation and that the emails that allegedly informed the accusations had been obtained illegally.
A ban from UEFA competitions, including the Champions League, is a potential punishment if City are found guilty of FFP breaches.
The club were fined 60 million euros (USD 68 million) and subjected to squad, wage and spending caps in a 2014 settlement agreed with UEFA following a previous breach of the rules.
He said: "We will not be banned, no. That's what I think because I trust in my chairman, with my CEO, what they have explained to me. I trust in them.
"If it happens, because UEFA decide that, we will accept it and move forward." While City are being investigated off the pitch, the team are continuing to enjoy fine form on it, leading the Premier League by two points going into the weekend's fixtures.
Guardiola's side, unbeaten in their opening 15 league games, visit Chelsea on Saturday, where they are likely to face Jorginho, a player Guardiola tried unsuccessfully to sign from Napoli in the summer.
It has meant that Guardiola has had to continue to rely heavily on Fernandinho in the midfield anchor role, with the Brazil international the only outfield player to have started all 15 of City's league games to date.
- Fernandinho praise -
Guardiola was reluctant to discuss the disappointment of failing to sign Jorginho, but was happy to extol the virtues of Fernandinho, who turned 33 in May.
"He did not come to compete with Fernandinho to be part of our team -- but what Fernandinho has done here, not just this season but all the years we have been together, is incredible," he said.
"I understand completely that most of the good things we have in this moment is thanks to that guy. I am very pleased for him and pretty sure with his personality that he will continue (to perform in) that way."
City are also set to face Eden Hazard, a player Guardiola described as "one of the best in the world".
Hazard joked in an interview with Belgian media during the week that the only way City could improve was by signing him.
Guardiola, joining in with the joke, responded: "That is not going to happen."
The City manager, asked how dangerous the Chelsea playmaker is, added: "A lot. He said that he's so good and I am agreeing with him. Switch on the TV and look at him. You realise his qualities. He is one of the best players in the world.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)