I'm having problems with insufficient voltage being provided to just about everything that the ignition powers. The ground resistance on most circuits is .2 ohms key off, key on 17-22ohms, running 59-62ohms, then resistance drops to 0 ohms over 2500 rpm.

Link to video measuring ground wire of ac clutch connector. https://youtu.be/tzzij_-pwd8

 

Keep in mind measuring resistance you can get a 0 resistance reading with only one strand of wire . Voltage drop test are more reliable where circuits are tested under load..