The Italian, who joined the team ahead of last season from Force India, claimed that HRT were pressing ahead with their 2012 car despite the lack of a budget.
He even reckoned that HRT would test the car ahead of the new season, but also conceded that both he and Pedro de la Rosa, who was named by the team as a driver late last year, are only on "standby".
"At the moment everything is very vague," Liuzzi told 422race.com. "The main problem is that the team have no budget, so they are evaluating the way to get the money to have two drivers.
"Now I'm still tied to HRT, because I have a deal for two more years, but everything is still to be defined, because they are looking for sponsors.
"For sure they would like to keep both me and Pedro (de la Rosa), but we are still in standby."
Liuzzi signed his contract for HRT when they were owned by Jose Ramon Carabante, who sold the team to Spanish investment group Thesan Capital last summer.
However, the decision of the new owners to move HRT to Valencia prompted the departure of team principal Colin Kolles in December.
Former F1 driver Luis Perez-Sala took over but he subsequently admitted any decision on a driver line-up was a low priority.
Ex-Toro Rosso driver Jaime Alguersuari has since ruled himself out of a move, although Liuzzi admitted his position would still be under threat if a well-financed youngster expressed an interest.
"I'm fully part of the project at the moment, because I'm still a team driver. I'm aware that things may change any minute, as it can change in all other teams," he said.
"Currently the deals are worth very little, because a young driver with money can always come and buy the seat. That's how it works."
Of HRT's plans, Liuzzi said: "I'm completely part of the development programme. The new car is going on and should be ready for the first test in Valencia.
"We are confident that we should do a big step forward. For sure we will still have a long way to go, because the 2012 car won't be in the points, but will be much better than in 2011."
Liuzzi nevertheless said that he had not ruled out the possibility of joining another team as a third driver.
"We are evaluating because it's a decision to make. For sure when the situation changes at the last minute it isn't easy to find places in top teams," the 31-year-old added.
"Now I'm sure I will stay involved with HRT, but we will see. Things may change before the start of testing."