Toyota/Lexus UZ Engines The Random Misfire and the Fussy MAF

This is a video to help people that are possibly trying to figure out a random misfire that seems difficult to diagnose initially. It also explains how to plumb up the PCV System if you are using a MAF Sensor. It also explains what happens when it is not done correctly. The video focuses on the 1UZ-FE VVT-i and 3UZ-FE VVT-i but the same principle applies to the 1UZ-FE on VVT-i