N14 celect

[ktblogistics]

hello, have few questions about this engine that friend of mine bought the truck with,
1.cannot connect to ECM with in site , tried weather connector also , can connect with jpro(using diagnostic port) and it recognize engine and all parameters on engine
if i connect to weather connector with nexiq 2 it sees engine on datalink
2. truck runs with oil temp around 230 and up to 250 on hills , read some comments that ts normal for this engine but there is a little talk about replacing oil thermostat from 220 to lower one
3. its low on power , as far as my friend say it boosts only 20psi ,
any thoughts appreciated