Updated Status in re: Items 5 & 6
I made an appointment with my Volvo dealer, although I had serious doubts
whether the car was capable of being driven that distance without requiring
a tow. I had tried to restart the car a couple times and the rough idle and
service message persisted. However, the morning of my trek to the
dealership, the car started without any noticable problem, except for some
hesitation the first few uses of the accelerator. I made it to the
dealership without further incident or service warnings.
From the historical codes, an ETM problem was confirmed: ECM 130A and ECM
91CF for intake leak and throttle unit failure (per invoice).
If not for the 5 year / 75K mile extended warranty I had purchased from
Toyota (it was less expensive and provided more coverage that Volvo's
extended warranty program), the total repair costs would have been close to
$1200 USD, which included a mass air flow sensor, throttle body, ETM reload,
gasket, and 1 day's car rental. With the extended warranty, my out of
pocket expenses was about $20 in gasoline, and about 8 hours of my time.
Needless to say, the car is running beautifully since this service was
performed....
I appreciate the feedback and the insight gained from it, and will continue
to monitor this ETM issue with great interest.
