ok it looks like i got 12 15 33 and 42 codes

 

https://www.dieseltruckresource.com/...58#post1107258

 

ya i seen that i was just wondering if anyone had any ideas on what it might be

 

My guess is cruddy connections at the ASD and A/C relays, but maybe a bad relay. Swap the relays and see what happens.

Also disconnect the battery for a minute, go drive the truck, and check the codes again. If it's fixed all you'll get is code 12.

 

ok so i swapped the relays like wanna said, and i got code 12 and 41

 

Did you check your regulator?? my truck did the same thing but only when it would get really hot .. i thought it was a bad alt

 

isnt it a internal regulator on the 93's, i swapped 3 different alternators into the truck