Zak Attack

I got a CEL shortly after getting my 2014 V6 that was rust proofed at the Rust Check in Collingwood. Took it to Hanna Ford (they checked the code for free) and asked if I had rust proofing done recently. They said that rust proofing sometimes covers a fuel pressure snsor. Suggested driving for a while to see if it might clear. It did clear for a little while then came back. My Mustang is now in storage for the winter.
Can someone point me to a webpage that will show the location on this sensor; the service guys at Hanna made it sound like it could be cleaned.