I would check the crank sensor. I have seen them become intermittent. When it isn't working, the computer has no idea the engine is cranking and won't give spark or fuel. Your crank sensor along with the cam sensor is located inside the distributor. To replace it you need to replace the entire distributor housing. Here is some testing information from the service manual. Good luck Testing and Inspection Notes INSPECTION See attached pictures. Disconnect the wiring connector near the distributor. Connect one end of an ohmmeter to the G1 terminal at the distributor. Connect the other end to the G- terminal. G1 Pickup Coil Resistance: Cold (14°- 122°F): 125 - 200 ohms Hot (122°- 212°F): 160 - 235 ohms Connect one end of an ohmmeter to the G2 terminal at the distributor. Connect the other end to the G- terminal. G2 Pickup Coil Resistance: Cold (14°- 122°F): 125 - 200 ohms Hot (122°- 212°F): 160 - 235 ohms Connect one end of an ohmmeter to the NE terminal at the distributor. Connect the other end to the G- terminal. NE Pickup Coil Resistance: Cold (14°- 122°F): 155 - 250 ohms Hot (122°- 212°F): 190 - 290 ohms Using a non-magnetic feeler gauge, measure the gap between the signal rotor and pickup coil projection. G1 Air Gap: 0.2 - 0.5 mm (0.008 - 0.020 in) G2 Air Gap: 0.2 - 0.5 mm (0.008 - 0.020 in) NE Air Gap: 0.2 - 0.5 mm (0.008 - 0.020 in) NOTE: The air gap is not adjustable. If any of the above tests reveal a pick-up coil outside specifications, replace the distributor assembly.