Pierre Gasly was just 200 metres away from getting through to Q2, but for his engine to cut out on him as he exited the final corner.
“Out of the last corner, I came back on throttle and just lost everything from the last exit,” Gasly admitted.
“It was a good lap, six tenths faster [after S2] and but for 200 metres before the line, we would have made it through.
“[It is] quite a difficult moment for the last qualifying with Toro Rosso.”
Gasly, who is off to the senior Red Bull team for the 2019 season, did not believe that he could have got through to Q3, but he could have battled in the midfield in qualifying.
“We had the pace to be P12, looking at the lap times, so I think we didn’t have enough pace for Q3,” he added.
“[We could] fight just outside the top 10 and now we need to see probably if we are going to get an engine penalty.
“We need to investigate but we are clearly going to start further back than what we would have wanted.”
If Gasly was to get a penalty for an engine change then he would start the Abu Dhabi Grand Prix from the back of the grid.