Wondering if I should be concerned with these...
P0300-Engine misfire (2 of these)
P0748-Pressure Control solenoid A control circuit
P1638-Generator F-Terminal Circuit
SES light was flashing while just idling. Also how do I turn off battery light in message box?

 

if you have hp tuners You need to go under DTC codes and turn of the code Completly off you will be fine after that. in the engine misfire... do you have a TC. because it might be causing the misfire detection. and I dont know abou the pressure control solenoid

 

The cam is causing the misfire detection, not a problem, but it will keep the tq converter from locking. I know how to adjust it in HP Tuners, but if I rember right you have EFI Live - you should be able to desensitize it though. not sure about the other codes.

 

To fix the misfire code ... raise your misfire count tables up by say 300%.

Not sure what the 2nd one is, but the 3rd one I wouldn't be worried about.

 

Thanks, that done it for the misfire. I was wondering why my tc wasn't locking. Now to find out what to do with the other two....

 

well the terminal one is because you swapped to a newer PCM that requires (I believe) a ground wire from the alternator, but you dont need it. The wiring harness in the 00 and prior do not have this ground wire. You should be able to turn it off. I remember Greggo doing it on his.

 

I heard someone say that wire was necessary for the alt to charge the battery.

 

as far as i know you do not need it. mine charges just fine. think about it if you needed it to charge it would have been there in the first place. I think thunder 550 knows exactly what it does, but i remember his saying that it was not needed. there is also a thread on here somewhere that explains how to connect it of you want.

 

I'll do without if it's not needed. Now I have to find out how to turn the light off in efilive.

 

Nope, it is NOT NEEDED. I've had a 02 ECM for over a year, without a dead batery
Just click no SES and no error reported. how ever the hell you do it with EFI. lol