After driving around the block many times, I am now able to pull code 45 from HFM pin 8. The text I found code is "Fuel safety shut-off of electronic accelerator or cruise control active". This code does seem to correlate with the behavior, I think.

The car des not have ASR or electronic accelerator, but does have cruise.

__________________
as ever
Paul

1989 560SL
1987 300SDL
1987 300TD
1983 BMW 633CSi
1972 280SE 4.5