Bit of Advice needed

[Alank]

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.

Thanks for any advice Alan.

[soulman]

Have you actually got a problem with the car ...

[Alank]

Yeah car keeps going into Limp mode every so often.

And when putting car on scanner it comes up with them two fault codes