As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L ENG FUEL LO PRESS CAUTION MESSAGE INFLIGHT. RAN THROUGH QRH, AFTER 1 MINUTE MESSAGE DISSAPEARED. T/S PER A220 SOLUTION 2-33317, R/R LT ENG FEED PRESSURE SWITCH , ALL CK GOOD. INSPECTED WIRING TO SWITCH NO DEFECTS FOUND. RAN 3 TIMES NO FAULTS PRESENT. A/C OK FOR SVC THE FLIGHT CREW DID NOT DECLARE AN EMERGENCY, BUT AIR TRAFFIC CONTROL DECLARED AN EMERGENCY FOR THEM WHEN THEY INITIATED THE DIVERSION.