f7 loses a cyl at idle

[dtcat]

2004 f7 fuel injected runs flooded on exhaust side cyl.compression is 128 on both swaped plug wires still same cyl swaped injectors still same cyl checked with infra red temp is much lower on that cyl seems to have more oil fouling runs up to 8000rpm but pings at idle any ideas thanks

 

[powderpusher]

check the intake boots if it has any as i had a polaris that had the same problem and i foumd a cracked boot changed it out runs like new again