Will Stevens will miss the Malaysian Grand Prix after the Manor Formula 1 team was unable to cure the fuel system issue that stopped his car running in qualifying.
The Briton had got within 107 per cent of the leading pace at times during practice, but had to sit out qualifying due to a problem that team boss John Booth said would have to be investigated by engine supplier Ferrari.
Manor then announced an hour before the start of the Sepang race that it had not been possible to fix the problem overnight.
The revived team will therefore make its first start in its new guise with just one car for Roberto Merhi, who was given dispensation to race despite not getting within the 107 per cent mark in qualifying.
Although Manor has made great progress since it failed to leave the pit garage at all during the Australian GP weekend, Booth admitted that teething troubles were still likely to occur.
Asked on Saturday if he expected his cars to finish the race, he replied: "I see no reason why we shouldn't. But the position we are in, there are a lot of things catching us by surprise."