general problems of the 1998 Subaru Forester

My 1998 Subaru Forester hesitates on acceleration in the low rpm range. Once over about 3000 rpm, it runs fine. According to a technical service bulletin released by Subaru in Jan 1999, #11-53-98, this is caused by the engine control module incorrectly interpreting vibrations in the engine as skipping and readjusting the fuel flow rate. The fix requires installing an upgraded ecm--to the tune of well over $1000. This hesitation produces an unsafe situation because the car may at any time refuse to accelerate, or accelerate suddenly without warning.