Performance with no MAF connected.

[paulf]

My car has gradually lost performance recently due to the MAF sensor.I have disconnected it and am getting an indicated 44mpg on my usual journeys instead of the 45 or 46mpg i got with it connected.
Looking at the price of them it seems that I would need to do a lot of miles to get back the cost of replacement so am tempted to leave it disconnected, but will I be loosing much performance compared to a fully working sensor? I know that the car just runs a default map when disconnected and there is no compensation for air temp and have considered cutting the Maf signal wire but leaving the air temp sensor connected.
Paul.

[James.uk]

Mickey Mouse writes the "indicated" figures. :D

You have to do a brim to brim test to get your MPG.. :D
...

[paulf]

I realize that and am not particularly concerned about the actual mpg, just in what difference the disconnected sensor will make.If it just makes a couple of miles per gallon difference as indicated and the performance is as good as with a fully working sensor then it may not be worth the expense of replacing it.
But am I going to loose out on performance and drivability compared to a new sensor by leaving it disconnected ?
Paul
Mickey Mouse writes the "indicated" figures. :D

You have to do a brim to brim test to get your MPG.. :D
...