Error Code P0100

[S.Speed]

I have got an engine error warning symbol lit up..
I plugged the gizmo in and it proclaimed a code P0100 mass or volume air flow circuit voltage too low..

BUT, My car runs absolutely spot on without the slightest drop off in performance.. In fact I burned off a so called hot hatch from the lights without any problem at all..
It revs all the way to the red zone if I choose to...

I realize it usually means the MAF is on the way out but surely I would notice "limp home mode"??
Or is the fact I have the EGR shunt in position stopping limp home mode ???

I dont want to splash out on a MAF if there is nothing wrong with mine..
What would you suggest ?

Mileage is now 64k

 

[Steve@Avantgarde]

You can actually check the MAF performance on STAR and see what its operating range is. That will tell you if its fubar'd or not!

 

[S.Speed]

Thanks Steve..
I have my car booked into the MB dealership on another matter on Wednesday afternoon and so I my "risk" them having a look then.

 

[television]

Give it a hard run Simon to see if you can turn the lamp off, it could be a result of all the testing that has been done