I have an '05 ford escape. Went into limp mode with P0354 code. Won't start now

Hello, doubtful to be a PCM concern. Not knowing more about the 16 year history of this vehicle it's hard to really know what might be happening. Hands on testing is required. How can you test it? With a proper Ford IDS diagnostic tool (or equivalent), years of diagnostic training specific to this vehicle and engine, and resources such as workshop manuals, powertrain and emissions manuals and wiring diagrams. I'm sorry - it just needs to be addressed the right way, and without guessing. This isn't easy and quick maintenance and light repair, it's troubleshooting. www.repairpal.com/repair-shops