My MFA reads 99.9/99.8 for fuel consumption all the time.

[StuartB]

Any ideas why this might be happening?  

Any help would be gratefully appreciated, as the rest of the computer functions seem to work perfectly.

Kind Regards


Stuart

[old_boy]

It sounds like the rubber hose on the back of the speedo pod has come off.
Pull out you speedo and have a look, failing this, look for other vacuum leaks!