94 Jimmy - Cranks but won't start

[vidarflash1]

I have a 94 Jimmy 4x4 4.3L Z
Last week it started having problems starting,I checked the wire going from the coil to the distributor,cleaned the ends,checked for continuity.
I found this forum after still having problems - someone said turn the key on and let it sit,so last week I started turning key to on for 5 sec. and then to start and it would start. sometimes it would start then go off 3 or 4 times before it would actully run,
I found the fuel pump relay - jumped it out and can hear the pump run in the back,but now it just turns over and won't start.
I also tried jumping out the other relay next to it - not sure what that one is ... I am not a mechanic ,so wouldnot know how to check for gas preasure... please help

[GMCTech]

You'll need to get some fuel pressure readings. I'd suggest bringing it to your mechanic and get some further diagnosis.

Hope this helps.