Red Bull could yet to be sent to the back of the grid in Germany after irregularities were found with regards to their engine mapping.
Sebastian Vettel is set to start Sunday's 67-lap race at the Hockenheim circuit in second place while team-mate Mark Webber is eighth after incurring a five-place penalty for a gearbox change.
However, the duo could yet to be stripped of their qualifying times after FIA technical delegate Jo Bauer revealed that both cars were running illegal engine mapping.
"Having examined the engine base torque map of car numbers 01 and 02 it became apparent that the maximum torque output of both engines is significantly less in the mid rpm range than previously seen for these engines at other events," said Bauer's statement.
"In my opinion this is therefore in breach of Article 5.5.3 of the 2012 F1 Technical Regulations as the engines are able to deliver more torque at a given engine speed in the mid rpm range.
"Furthermore this new torque map will artificially alter the aerodynamic characteristics of both cars which is also in contravention on TD 036-11."
Last season the FIA clamped down on the use of engine electronics and exhaust gases after teams were found to be using extreme engine maps.