I'm having issues with the 15amp fuse in position 2 under the hood..It's constantly blowing, it controls the trucks engine management system.. Any idea why this is happening? In result I am getting a bunch of crazy codes over my OBD2 reader... Thanks in advance

 

This controls the maf, o2 sensors, cam sensor and purge valve. Check the wiring by the throttle body and wiring to these components. What was done to the D2 recently? What are the codes?

 

The only thing recently done was had u joint and cv ball? Replaced.. But during the day the mechanic had the truck he managed to drain the battery.. He left the key in ignition.. When I went to pick the car up I noticed my clock was showing the wrong time and my aftermarket alpine stereo wouldn't emit any sound.. It turns on and I can scroll through all options (cd,fm,Bluetooth but won't connect) weird.. I checked fuses for radio and amp all seem good but still no sound.. I will post codes in a few hours on my lunch break but all seem to be related to what fuse #2 control

 

I also checked wiring and all seems good.. No melted wires or disconnected harnesses

 

With aftermarket equipment, I usually suspect of where they tapped in for power and ground especially an audio shop. Make sure none of the aftermarket equipment is connected to Fuse 2.

The front driveshaft on a D2 is really close to the connectors of the rear oxygen sensors. Make sure the oxygen sensor harnesses are in good order.

Sometimes with electrical shorts, I disconnect everything in connected to the fuse and slowly add one system/connector a time and recheck the fuse. You may go thru a bunch of fuses but save some time.

 

Here are the codes I'm getting...
P1884
P0102
P0135
P0155
P0141
P0161
P0340
P0414
P1482
P0445
P0448
P0139
P0159
P0134
P0154
P0160
P0140
P1451
P0300
P0307......WTF

 

Fuse 2 is related to all of these faults. I'm sure you fix the fuse with fix these faults.