Classic Saab 9-3/GM900 (1994 - 2002)/Conv ( -2003)
Here was the scenario/problem:-
Car was driving fine all day. Engine warm. Stopped (for shopping some 30mins).
Returned to car to go home and started car and it would not idle. Engine cut out if throttel not continualy depressed. Orange engine warning light on. Managed to limp home though...