Injunmark

I don't know what the W-T charging system upgrade means. I can test the new alternator, no problem.

That is the one mounted to the left side of the engine block, right? Not the one in the firewall

Hi guys, my 2002 5.9 24 valve has some issues and I want to verify I am doing the correct things before proceeding. It runs poorly and surges, the temp gauge is going near full almost immediately, and the check engine light is on. There are several high voltage codes including (P0563 charging system, P1475 Aux 5 volt output, P1286 APPS supply voltage, P0113 Intake air temp sensor, P0118 ECT voltage, P0238 MAP sensor) all stating voltage too high. Now I also have the P0606 ECM/PCM Processor code. I did an alternator A/C noise test and it failed (otherwise the charging system seems normal). I am able to scan codes but can not communicate to get any data whatsoever. My plan is to replace the computer and replace the alternator. My questions are : does this seem to be the correct course of action and if so, which computer needs replacement, the one on the passenger side firewall, or the one mounted on the drivers side of the engine block. Thanks in advance for your help, much appreciated