89 Beretta intermittent no start
I have an 89 Beretta GT w/2.8. (Daughter'* school car) always starts when cold. After warm up it may or may not start. No codes set when checking ALDL (diagnostic mode). With engine running ALDL shorted (field serv mode) get fast serv eng soon blink, then slow blink, then constant on. Fuel pressure 44 ign on car off. 39 car running. No spark when cranking and no start. Tach in instrument cluster goes below 0 RPM when cranking. I don't have a SCAN tool or OBD 1 tester. Just a paper clip to short ALDL. Any ideas on where to look for this gremlin?