SPT940;56967 wrotei'll start an economy trial this week too.
My feeling is that economy may be worse if can suck more air then more fuel would be required?!?!
Makes sense!
Unless it let's it breathe better therefore fuels it better , its a dark art we muck around with
I cleaned my MAF , got better economy.
It still stuffed up again , was on its way out so swapped another in and got heaps better economy.