Honda has acknowledged making limited progress on the severe vibration issues plaguing its 2026 Formula 1 power unit but admits it still hasn’t identified the fundamental cause of the problems affecting its partnership with Aston Martin. The Japanese manufacturer’s struggles have contributed to Aston Martin’s disastrous championship start, leaving the team dead last after failing to complete either of the opening two races in Australia and China.
Honda trackside general manager and chief engineer Shintaro Orihara revealed that while the company has achieved “some progress” in reducing vibration severity and improving battery reliability since the Chinese Grand Prix, significant challenges remain. “We made some progress in terms of battery reliability thanks to a reduction in the vibration affecting the systems, but we must find more solutions to establish the cause of the vibrations affecting the drivers,” Orihara explained ahead of Honda’s home race at Suzuka.
The power unit manufacturer faces multiple deficiencies compared to rival engine suppliers, including reduced internal combustion power, compromised energy recovery and deployment systems, and persistent battery shortages. These combined issues have prevented Fernando Alonso and Lance Stroll from completing full race distances, with Stroll previously warning that Suzuka would prove difficult “unless they can find some magic in the next 10 days.”
Orihara emphasized that Honda utilized the two-week break between China and Japan to address reliability concerns but conceded the performance remains below expectations, particularly in energy management. “We are not at the level where we wanted to be going into this weekend, but we will keep working hard to maximise our package,” he stated, expressing hope that Honda fans would witness progress since the season-opening Bahrain round.
The technical struggles have coincided with significant management upheaval at Aston Martin, where team owner Lawrence Stroll reportedly pursued Jonathan Wheatley following his sudden departure from Audi. Meanwhile, former team principal Andy Cowell has been stationed in Japan to assist Honda with resolving the power unit issues, working alongside technical partner Adrian Newey who has been fulfilling team principal duties.