FIA introducing measures to avoid ‘software bug’ chaos repeat

Same engine software fix introduced in Malaysia remains in place for Singapore in event of any wet weather; further update to follow for next round in USA; watch Practice at 9.30am followed by Sprint Qualifying at 1.30pm on Friday live on Sky Sports F1 at the Singapore GP

The FIA will introduce further changes to wet-weather engine software from the United States Grand Prix after completing a review into the "software bug" that further delayed the start of last week's rain-hit race in Malaysia.

Several cars slowed or briefly stopped on the rain-hit laps to the grid last Sunday due to what the governing body after the race described as an "unprecedented combination" related to both the slow speed the cars were travelling in the wet and the sector configuration of the Sepang lap.

The start procedure was abandoned and the Grand Prix eventually started 48 minutes later after a software update was issued by the FIA to all teams and power-unit manufacturers.

Having promised an investigation into what happened, the FIA delivered its findings and next steps on Thursday ahead of this weekend's Singapore Grand Prix.

"The review concluded that some cars running on low engine RPM in certain circuit sectors where a 250kW power reduction was applied experienced a loss of power beyond the original intent and that could not be recovered in those sectors," read the statement.

"As a result, the configuration established for the Sepang event will be reinstated for the Singapore Grand Prix should similar weather conditions be expected.