I have 8k on my 9 now so I changed the fuel filter and spark plugs, since it was feeling a little sluggish. Both strainer and plugs were filthy. Crunk it up and now my idle is running 1200-1300 rpms. I went onto my power commander and it said no map found. This is after I had a custom map done about two months ago. I also went with a colder plug (NGKCR9EK). would the plugs cause this? Any solutions would be appreciated.