Hello everyone, this guide will help you hunt down all the relevant datacrons to the sith inquisitor class (i.e. willpower, endurance, and presence).
+4 willpower (304, -1570). This datacron is located on the far northeast section of the map, north of the Imperial base inside a cave. To get to that cave, you will have to go north of the heroic area and then go all the way to the right (where the arrow is pointing)...
+4 Willpower (-506, 770). You need to take the speeder to the Imperial Command post (High security section) and follow the left path until you get to the location circled below...
+4 willpower (-2404, 2948). Getting to this datacron can be a bit tricky and you might die once or twice. However, once you got the hang of it it is pretty easy. First you need to head to roughly this location on the map. It is just south of the taxi (not tram) terminal in Incorporation Islands.
+4 Willpower (-29, 370). To get this datacron, you need to take the taxi to Fort Kodentha and head to the caves at the right side of the map.
+4 endurance: (2839, -378). You need to head to the Starship Graveyards (take speeder to Frostwake Outpost). Once you are there, head to the NE most corner of the map, in the heroic area. Go to coordinates 2597, -841 indicated in the map, there is a ledge there you can climb up.
+4 Endurance (208, 772): This datacron is pretty straight forward for a sith inquisitor. Take the speeder to Imperial Outpost and go to coordinates (448. 788) marked on the map.
+4 Willpower (439, -765): This datacron is probably the most frustrating datacron for me. I have literally spent 2 hrs trying to get this one and gave up in the end of trying to get it by myself. Instead, I asked a friend who is also a sith sorc with the extrication ability and better jump skills to grab me instead!
+3 Endurance (2722, 2496): To get this datacron, head to Outpost Talarn in the Juran Mountains. You need to purchase a Red Detonite Actuator from the vendor south of the Outpost at coordinates 1866, 1084 marked on the map.
+3 Willpower (2074, -578). This datacron is in Jundland. Take the speeder to Outpost Rennar or Ridgside Sentry Post and then head to 2048, -498. You will see the datacon right away but you can’t get at it yet.
+3 Presence (2925, 399): I want to say that this datacron is almost as annoying as the one on Taris due to the amount of jumping involved and the amount of fail you can achieve before you finally give up or get it.
+2 Willpower (193, -343): To access this, you need to head to Bugtown. To access, Bugtown, you need to go to the Vanguard Outpost in Markaran Plains (you don’t need to complete the bonus series to access this outpost but it is located where the bonus series are).
+2 Endurance (-793, 1451): Very easy to get. Take the speeder to The Wall and Head to Lord Grathan’s Estate. Once you are there and face the main building, take a right, you should see a hidden path in the woods.
+2 Endurance (151, 79): Fairly easy to get. Step off the Shuttle and voila there is the datacron.
+2 Presence (649, -109): This one is at the NE corner of the map. Starts with a long pipe (coordinates 504, -9) you have to get on top of them and there is a minor bit of jumping around, although no where as difficult as the one on Nar Shaddaa or Taris.