Not to doubt the dealershipand that #, but did they clear the code(engine light)or is it still on? And did they charge you for that diagnosis? If the light is still on, I would take it to your local autoparts store that reads codes for free. And I also agree w/ MikeR that you have nothing to lose by doing the solder fix; a known problem, and easy to do (if you can solder). Good luck with it Softball. Bob