Snapped bolt, how to remove?

[YourMinky]

Please see the other posting. I posted some questions there.

Nissan Sentra P0440 P0446 MIL code EVAP leak

There is a big hole in the tailpipe in the front side - the part that comes out of the engine. The car is not accelerating properly anymore. Shaking when trying to go faster and very loud. I am no longer getting the P0446 code since I removed the broken solenoid and cleaned it a bit and put it back so I can drive the car. I am waiting for the replacement solenoid to arrive. I am getting 3 codes now. P0440, P0136 and P1441. Are these 2 new codes (P0136 and P1441) related to the hole in the exhaus…