As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX- ON TAXI FOR FLIGHT 2525 MOMENTARY "L ITT EXCEEDENCE C" STATUS MESSAGE FOLLOWED BY ABNORMAL ITT INDICATIONS (WITHIN GREEN RANGE) BUT MUCH HIGHER THAN NORMAL DURING TAXI. RETURNED TO THE GATE. REMOVED AND REPLACED NR 1 ENGINE FADEC, LUBRICATED IGV BELLCRANK ASSY, INSPECTED IGV ACCTUATOR ATTACHMENT HARDWARE. BOROSCOPED ENGINE. C/W POWER ASSURANCE RUN NO DISCREPANCIES NOTED. NO ABNORMAL VISUAL SIGNS NOTED ON NR 1 ENGINE. AIRCRAFT RETURNED TO SERVICE.