I hamy truck runnng. It died and won,t restart. Got fuel pressure bt no spark. Tested the coil it,s good, the relays, module and dist are all new. Still have no spark. Occasionally after it sits when the key is turned on the check engine lamp comes on during the self test, at that time it will start die in seconds won,t restart and no lamp. I have power at all the fusible links and at the relays and the coil. Any ideas?