90 civic Si won't start help please

[fixed4 life]

I have a 90 civic Si that I bought 2 years ago. Saturday I drove it to work and back with no problems. It sat till Sunday night I tried to drive it and it wouldn't start. Main relay is less than a year old. The fuel pump primes and I pulled a spark plug out and I see spark. If I keep cranking the engine it acts like it wants to start sometimes. This morning I kept cranking it till it finally started it ran for about a minute and then just shut off. I know there are tons of post about this all over forums but thought I would try again with this post. Thanks for reading.

 

[fixed4 life]

Also it's not throwing any codes. The LED on the ecu does blink once when I turn over the key but nothing else after that.

 

[fixed4 life]

Here's an update. Took the cap off the distributor and the screw that holds the rotor in place had came loose and fell out. Bought a new cap and rotor and its running like a champ now!