Check the crank sensor. In fact, replace the crank sensor. Whether it needs it or not. They are NOTORIOUS for going bad. Its cheap and extremely easy to do. They wont always set a code.

1969 Nova
454/M21/3.31
Mild mid-11 second weekend cruiser

1994 F150 XLT Super Cab 2WD
5.0/4R70W/3.55
(Daily driver)