Sorry for the late come-back, I've been having computer issues. If it cranks good, but, won't start, have a helper crank it, while you check for spark at the plugs. You can pull a spark plug boot, stick known good plug in the boot, ground metal part of plug to metal part of engine, watch for spark. If that checks out, check fuel pressure.
Did you try checking for codes? You place a jumper wire between A & B terminals of datalink connector, then turn the key till dash lites come on, no further. The mil starts flashing, you count the lashes to get the codes. Your looking for two digit codes. The picture below is generic GM obd1 datalink connector, just to show location of terminals A & B.
Tuesday, January 19th, 2010 AT 10:00 AM