Honda has denied recent reports that its engine development for 2019 has hit trouble. It was suggested in German media last week that a disagreement with consultancy firm AVL had slowed work on next year's machinery, but Honda say a contract with the Austrian company was never entered into.
Honda's previous F1 relationship with McLaren was beset by communication issues that saw the eight-time team champions fall sharply down the grid and last week's reporting gave a worrying foreshadowing of things to come.
However, a Honda spokesperson told Auto Sport Web: "It is not a fact that we cancelled our partner contract with AVL because we have not signed a partner agreement with AVL in the first place.
"It is true that Honda was talking to work together with AVL, but there is a gap between what Honda is seeking and what they can do and we have not concluded. There must have been a misunderstanding."
Autobild also reported that the Honda power units are unable to tun at full capacity due to strong vibrations in the Internal Combustion Engine.
Marko told Autobild of the issue: "For this issue, we are taking appropriate measures."
And the Japanese marque stopped short of denying concerns over the matter, but said it would not be known if it was a factor until pre-season testing.