The British driver ended up 14th, four places behind team-mate Filipe Albuquerque, after a "stressful" session blighted by red flags on Wednesday that decided the eight cars to progress to Thursday's Hyperpole shootout.
Blomqvist explained that a mistake on his only clear lap at the Ford Chicane had meant he ended up in a provisional 10th, before being docked his best time for failing to slow quickly enough when red flags were shown as he was entering the high-speed Porsche Curves.
