Yes the misfire can be felt. When it starts doing it is always at slower speeds and when the AFM is inactive.
Freeze frame doesn't show anything making a sudden change.
Yes I get P0300 and P0307.
Fuel pressures good as are all sensors, at least according to scanner.
I read those bulletins also and do not think my issue is related as I do not go through oil and the plugs are not oil soaked or carbon and sludge buildup anywhere.
My biggest question is why does just cycling the key fix the issue for a while and why if in park and feeling the misfire I increase the RPM to 3500 does the misfire end and then start back up as soon as the RPM drops to 3200? I can sit there and watch the misfire counter go up then stop, then go up then stop as I play with the RPM at and below 3500.
My thinking was coil wiring also but doesn't fit with being able to stop the misfire at 3500RPM. I get the fuel pressure being important as well as all sensors but I would it only affect #7? I thought maybe weak springs or burnt valve and that's why the higher RPM would fix it but that doesn't add up either when I can go a couple days without it misfiring.
Was really hoping to come across someone who had also ran into this issue.
Saturday, May 23rd, 2015 AT 5:38 PM