Originally Posted by daveymcmillan
It actually wasn't related to the ignition coil. The problem exists w/ the VANOS solenoid.
Go to the DIY section and look for the thread on replacing the VANOS solenoids. It is a very easy DIY (if you turn wrenches on your car) and you can just clean and swap places of the two units (intake and exhaust). No need to get new parts. They just get dirty and need to be cleaned. 45 minute job at the most. I cleaned and swapped mine over 22,000 miles ago and have not had the problem reoccur.