Hi guys,

Right my mate has had a new scanner and the codes came up as follows

P0100 Mass Airflow Voltage Supply.
P0704 Clutch Switch Signal Incorrect.

Now where not sure where go to from these codes as my mate works on lorrys mainly so doesn't know alot about the Vectra's and i thought i would ask on here if anyone esle has had these codes and whats best to do next.

The car does keep going into limp mode every so often.

Thanks for any advice Alan.