[Brian R.]

Check the ignition timing in "N" gear, shorting TE1 and E1 terminals of the data connector. Should be 10 btdc at idle and operating temperature.
Check your fuel pressure in pinched-off return hose with ignition on, shorting FP and +B terminals of the data connector.
Check spark in all cylinders, should be bright hot snap and jump 1/2 inch.

These are the starting points from Basic Inspection on page EG1-310 of your maintenance manual. Follow that troubleshooting procedure. These are for a no-code situation. See also EG1-327.