I have an 2005 F150 with a 5.4L engine. It idles and runs ok at normal acceleration but sputters and misfires during heavy acceleration. I had codes read on it during a test drive. It showed 16 misfires and 32 Low Word Count. I can't find any information on the Low Word Count reading. Does anyone know what this signifies?

What do I have to do to get a response. Is this ignore the new guy or is this too simple that I should know the answer and it isn't worth replying? Maybe I have stumped all the experts?