I had this happen to me shortly after putting a cone filter on my SC VX. It would only fault after a prolonged WOT run. It happened twice, I reset it both times.

I swapped the stock airbox back and it hasn't reappeared. I am guessing that somehow the flow through the filter I was using was fooling the MAS into leaning out a little too much for the LT trims on the fuel table.

If I can borrow my friends OBD2 datalogger again I can check exactly whats happening.

John C.