First thing I did was read the codes, a complete scan, before I started it. Nothing found, other than the persistant air bag and side light codes. This mornings cold start yielded the standard lumpy idle, but it did smooth out in about 30 seconds and no SES light. I then read the codes again and the typical misfire of 3+5 showed up, but that was all. Sometimes the misfire stays for several minutes or miles and I have to kill the SES light with the Foxwell. Then it starts and runs fine until the next cold start.

What vacuum leak would go away in less than a minute? It seems to always include cyl. 3. The others vary but 3 is always one of the ones with a miss. Is there a cold start solenoid or circuit that turns off a few seconds after a successful start? Could the injectors be malfunctioning? How hard are they to swap from cyl. to cyl?

Thanks in advance for any additional advice, I'm not sure where to go from here. Coils and plugs are both new.

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Cal
Tidewater Virginia, USA
2005 X5 3.0i 315,000 miles!