FosterW

What is the gauge of the dark blue wire at pin 25 in C3? The wiring guides in the articles do not list the wire gauges.

Understood. So the WT ground wire mod eliminates the 140A alternator fuse at the PDC? Since it is suggested to run that wire straight to the passenger battery (+) ?

Thanks for the reply. I read through both of the modifications yesterday, and while doing some preliminary investigating noticed the wire tap I mentioned. What it’s trying to be achieved with the wire tap I described? Additionally, what is the noise filter on the PCM? And what is the process to check for alternator AC noise?

In the C1 connector on my PCM, the orange/black tracer wire that leads to the TPS has a wire tap connected to it leading to body ground. It is tapped a few inches out from the PCM. I am having no issues at this time, just curious if anyone knows what this is all about. It does not appear factory, and wiring diagram does not show that wire going to ground for any reason. 02 automatic.