Had this pop up this afternoon after taking on a big bump in the road. Couldn't really lay into it without hesitation, so I had to be light on the pedal. Checked the MAF and it looks just fine, but I didn't tear into the wire loom to inspect the wires. The only thing that I noticed was the acceleration throttle cable had hopped out of its groove and was almost into the cruise cable's. Corrected that and cleared the code and on the 15 minute drive from the folk's to my place, it didn't come back on and there was no hesitation when I got on it. I did find the 3 tests for the MAF on here, but I'd like to see the location of the MAF's ground and check that.