Remove 0x34 manifold block and soak with cleaners & oils, then install with fresh working air pump and trace the leak if needed.
Verify power and grounds + relay and check the CAN for communication disruption, ......clear codes first and default.
Verify level sensors on control arms and if needed trick to get compressor to stop overheat condition by lifting car & removing load from suspension and compressor work.
Excuse my ignorance. What is 0x34 manifold block?