Jake brake & oil temp cm870

[rpoese]

I’m kinda lost at what to do. So 07 cm870 fresh inframe done. Demandated and non vgt turbo. I’ll start with I know you lose 3rd stage that’s not my issue or question. Oil temps have always ran higher than I have wanted cruising loaded when it’s 55 plus outside oil temps run 230 or so if I’m in the throttle pulling it’ll climb to 240. New oil cooler and 215 degree oil thermostat put it in when it was overhauled. It did this same thing before it got overhauled. The jakes when the oil temp is over 215 are real choppy and weak if oil temp under 215 they work great just how they should. Is it possible something in ecm is causing the Jake’s to do that or something else? I’m thinking maybe it’s possible the temp sensor is bad and not reading right? Idk