Sebastien Loeb is being investigated by the FIA stewards over his rapid tire change on SS11 of the Rally Sardinia.
The world champion is set to lose his unbeaten record in the 2009 World Rally Championship due to the incident yesterday.
The officials are examining in-car footage to see if the WRC seat belt regulations were adhered to throughout the time that the car was in motion.
Loeb sustained a puncture on Fiorentini 2 yesterday afternoon, and having initially tried to continue with the tire damage, the Frenchman and co-driver Daniel Elena stopped to change the wheel, managing the task very quickly and rejoining just a minute later.
"We picked up a puncture after brushing a tree and we had to stop to change wheels," said Loeb. "We beat our own record doing the job, but a minute isn't something you can make up easily."
A decision on the issue is expected some time after the rally finish this afternoon. Loeb has since got back up to third, but is two minutes behind the rally-leading Fords.