A3 - Check Plugs and Wires

^ Check spark plug wires for insulation damage. looseness, shorting or other damage.

^ Remove and check spark plugs for damage, wear, carbon deposits and proper plug gap.

^ Are spark plugs and wires OK?

YES -- Reinstall plugs and wires. GO to A4. A4 - Check IGN GND at ICM

NO -- Service or replace damaged component. Remove all test equipment. Reconnect all components. Clear continuous memory. Rerun quick test.