Limp mode troubleshooting
Background info: 2004 F-150, 60k, 5.4L 3v, intake/exhaust and Troyer tune
So I was going to work, tonight, and was about a mile away, when I ended up doing a nice WOT pull to get around a slow fuel tanker truck. Around the top of second gear, the truck bucks and goes into limp mode (amber wrench light on the dash). By then I'm pretty much at work, so I cruise in to the parking lot and shut it off (it's running in limp mode during all of this). I hook up my XCal2 and check for codes; no DTC's found. I start it back up, and it's back out of limp mode, but the CLE is illuminated, despite no codes. My first thought is the TPS sensor is on its way out, although that usually includes DTC codes, unless it wasn't on long enough while it was in limp mode (less than a minute). Thoughts?