Rubens Barrichello wants a major re-think at Honda after he qualified 19th for Sunday's Malaysian Grand Prix.
Barrichello has called for improvement after a poor start to 2007
The Brazilian had to use the spare car in Sepang and says the team are trying too hard to solve their problems.
"The car is bad and in Sepang it was not set up for me," Barrichello said. "What can I do? I'm like a passenger.
"Everyone needs to calm down, go back to Europe, sit down and check things out. We have tried a lot of things but not one thing seems to be working."
Honda spent the build-up to the race testing new parts at Sepang in an attempt to solve instability during braking and a lack of front-end grip.
The team fear they may be seeing a recurrence of aerodynamic problems that plagued them at the start of both the last two seasons.
We are good at pulling ourselves out of a difficult position and that's what we are going to do
"In qualifying in Melbourne, the car was hitting the ground like never before and here in Sepang it was not set up for me," he said.
"We need to use the human side to sort things out. We can't do anything about the car."
Barrichello's team-mate, Jenson Button, had been more optimistic after testing, insisting Honda had made "a small step in the right direction".
And the Briton, who finished third in Malaysia last year, remained after finishing 15th in qualifying at Sepang.
"There is still a lot going on and the team are working very hard in the factory," said Button.
"This may be a good thing in the long term and we can realise things are not going in the right direction and make it better.
"We are good at pulling ourselves out of a difficult position and that's what we are going to do."
Both Renaults struggled for pace in Sepang qualifying
Renault also had problems in Sepang, with neither of their cars qualifying in the top 10 for Sunday's grid.
The constructors' champions are struggling to generate pace on the Bridgestone tyres, and Giancarlo Fisichella, who qualified 12th, said the team still have work to do.
"The balance is not too bad, but we are lacking grip and that makes the handling quite unpredictable," said Fisichella.
"Just like in Melbourne we are a long way from the leaders."
His team-mate Heikki Kovalainen, who starts 11th on the grid, was feeling more confident.
"I am optimistic that I can do a good job," he said.
"The grip levels were improving with every run, and I think we had the pace to get into the top 10, so it's a little bit frustrating to end up 11th."