I am not sure what is meant by building the new bridge so if that got it to start then we need to investigate that further to find out what was done as that may help with figuring this out.
However, if you sprayed cleaner in the intake and it started then that is a fuel issue, so we need to check the fuel pressure to start.
The knock sensor code is most likely not causing this issue so we can ignore that for now. Also, if this is a MAF sensor, try unplugging it and see if the engine starts and runs.
I am attaching the info about the MAF code as that could be causing this.
Please run through this info and let us know what questions you have. Thanks
Images (Click to enlarge)
Tuesday, November 2nd, 2021 AT 10:57 AM