No Power P0300 Code

[29Rat]

So, today I was headed home from work and driving through stop/go traffic. While speeding up I had a sudden loss of power, engine RPM's went up, but the car slowed down. No check engine light or anything. I pulled off into a gas station, shut it off and filled it up. The car had over 1/2 tank, but the gauge is sometimes finicky and I forgot to reset the trip odometer. Only put in about 6 gallons, so no where near empty. Started the car back up, and drove home (interstate) with no issues. So I hooked up the scanner and read the codes, just a stored code of P0300, no date/time stamp with my scanner so not sure how old it was, but presumably it was from today's occurrence. I checked for vacuum leaks with a can of brake clean, no leaks found. Pulled a spark plug, gap looked okay, a bit of white coating/buildup on them, but nothing terrifyingly bad. Had a fuel filter from about a year ago that I never got around to changing, it was an absolute pain as I presumed it would be. And of course it was clean as a whistle, no restriction when blowing/sucking through the filter.

The IAC is newer, motorcraft, car has always had a very slight shake at idle in park and drive, and was an attempt at fixing that. Otherwise, no other new engine parts. Only thing I can think of would be a blip in the computers, or a bad crankshaft position sensor. On a very very very rare occasion, maybe 3 times a year, the car doesn't want to start, and cranks and cranks, fires a little bit, but doesn't stay running. I let it sit for a couple of minutes when that happens, and then it starts right up.

Obviously it's near impossible to diagnose something that is working fine now, especially over the internet, but any insight would be helpful. Thanks!

 

[Number4]

I believe Fords require 1,000 misfires before it will set a code. Not sure if that applies to the P0300 random misfire code or not.

Theres something that’s causing an issue and I’ve learned it never just “goes away.” Might be worth using FORScan and a laptop to look at it while you drive. Or have a shop test it.

 

[29Rat]

I did hook up my scan tool that reads just about everything. I didn't see anything wrong with O2, MAF, TPS, or Temp readings. Problem is, I wasn't driving or in the car at the time. I figured it was a long shot for anyone else having an issue like such. And the issue hasn't occurred since. I did clear the code, just because I was unsure of when that code had populated, and now have a baseline. With it running as usual now, I can't diagnose an issue. I don't have the $120/hr shop rate for diagnosing, but I do have just about everything a shop would have, and was more so looking for insight as to what to check. Wasn't sure if there's a common intermittent failing of a sensor or such.