Good day Lakazai
Was there ever any resolution to this? I have a similar issue with a customer's 2017 MacBook Pro 13" (With Touch Bar). Ive double checked every connector on the mainboard. Gone through both sides of the board closely inspecting for corrosion or physical damage. Nothing stood out. But HWSensors showed 3 temperature sensors ramped up to 128c (2 heatpipe sensors and Airdrop Proximity sensor) Nothing was hot on the board at all. Fans are spinning at maximum RPMs and the proccessor is operating at a fraction of its capacity. (Similar to an automobile's "limp mode")