Check the tan/black MAF wire return voltage at normal hot idle. According to my chart, you should have about .6 (~3.32 gm/sec) to 1.0 volts (~8.4 gm/sec). MAF at hot idle for a 5.0L should be ~.7 to .8 volts.

TPS voltage should be between .5 and 1.2 volts at... Login to read more.