McLaren are confident that they have now understood the Honda engine woes suffered at their first public appearance in Abu Dhabi testing.
McLaren Racing Director, Eric Boullier, says that they have got to the root cause of the issues after the team engineers spent last few weeks working hard to fix the issues.
"We changed a little bit the schedule and we sent Honda, McLaren people and the car itself back here [to Woking] for full investigations," the Frenchman said.
"They worked very hard for a week and they found out everything. A recovery plan is in place. Part of it has already been fixed, so there are now some further tests on dynos to validate."