Now I know this. I agree with billymac. You need to have the PCM professionally read. Using NGS tester or Eqivalent. It could just be the power loss during alternator fault has messed up the PCM and all the signals from sensors. You could try writing down all the codes you are getting for refernce later if needed and reset KAM in PCM back to it's default setting. Then you will have to perform the following relearn and a few drive cycle relearn procedures. Which is just basically drive around under normal operating conditions. And you would have to do this with new PCM fitted. Let me know
Resetting Keep-Alive Memory
Resetting KAM will return PCM memory to its default setting. If not using a scan tool, disconnect negative battery terminal for a minimum of 5 minutes then go to next step. If using New Generation Star (NGS) scan tool, turn ignition switch to ON position. Select ACTIVE COMMAND MODES, then RESET KEEP ALIVE MEMORY. Go to next step.
After KAM has been reset, engine must idle for 15 minutes to learn new idle air trim values. Idle quality will improve as strategy adapts. Adaptation occurs in 4 separate modes with engine idling, transmission selector and A/C in specified position.
IDLE AIR TRIM LEARNING MODES
Transmission Gear Selector Position.A/C Mode
Thursday, January 15th, 2009 AT 6:43 AM