Saab 900SE misfire after shutting it off and restarting

Hi all,

I have an issue that my car will run fine from cold until I shut it off. I try to restart it again after a few minutes, it will usually develop a misfire, drive sluggishly, and the check engine light will blink. I have been able to stop it by turn the car on and off repeatedly but with no real “fix”.

What can it be? Direct ignition?

Error code is for a misfire

Car info:

1996 900SE 4 cyl

151,000 miles

Spark plugs changed