I got this sorted today, it may be a cheap (free) fix fir other people too
When i went over a bump or tap the MAF, the engine would hunt or idle and management light would come on
I unplugged the MAF and got a stanley blade to open up all all the plastic around the top of the sensor.
2 of the 3 pins came unattached fom the circuitboard, So i soldered them back on and its 100 percent since, no lag, no management light and back to full power.