Try this first: Swap the ignition coil from cylinder 1 to cylinder 2 and then rescan for misfire, if it goes from cylinder 1 to cylinder 2 replace your ignition coil, no need to replace the the spark plugs if its not the issue.
Hope this helps, I had similar problem that I debugged same way:
http://www.e90post.com/forums/showthread.php?t=250979
Quote:
Originally Posted by Spike
hello,
now i have reduce the ut to 70. the car is much slower but i have no misfires. my bt shows much misfires at cylinder 1.
next thuesday my car becomes new spark plugs (the dealer has it not on stock). the old ones runs now ~40.000miles and ~20.000miles with the aa processor. i think i must replace it.
whats your settings of ut, max boost and other things in my config (dci, procede canbus, rest stock)
or whats your recommandation?
thanks
lars
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