Cel light on, brake light on. Code 2177

Hello, lots of guessing going on there, but what is being done to actually test the circuit for the concern? You could have a fuel supply issue, fuel injector issue, wiring short, air intake concern -- and much more -- but testing is needed with proper equipment, wiring diagrams and diagnostic steps to get to the root of the problem.

Just to add - at some point the control module must have been communicating with a scan tool or code reader for the P2177 code to be retrieved.. Since attempted repairs to the vehicle have taken place - I recommend TESTING all related fuses. Good luck!