F1 is not the only series having issues with the FIA fuel flow meters with Porsche saying it is "not proven yet" to be accurate.
The opening race of the F1 season was marred by controversy as Daniel Ricciardo's RB10 was disqualified for exceeding the fuel flow rate.
Red Bull are appealing the decision, adamant that the sensor that the FIA supplied is inaccurate.
However, it is not just Formula One that is using the device as this year Porsche will run the meter in its 919 LMP1.
And the German manufacturer says it too has found problems.
"It hasn't held us back because we did not make our development dependent on it, but there is still no robust solution in place,"...
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