Thanks. I did read your other post. I wasn't sure what fourm to post in.
For the record here's what I posted in the other fourm:
I have the Powertrain Warrenty, however the alternator is not covered. I might just leave the tune in. Thats what I was thinking, it would be hard pressed to say if the 2 were related. I've had a flicking problem since day 1. I had the YFR0 installed and made no difference.
The dealer said it would be no charge to have the system tested.