DTC P1107 Or P1108: Problem In Barometric Pressure (BARO) Sensor Circuit

Perform PCM reset procedure. See PCM RESET PROCEDURE/CLEARING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. Turn ignition on. If DTC P1107 or P1108 does not reset, problem is intermittent. System is okay at this time. If DTC P1107 or DTC P1108 resets, substitute a known-good PCM, then recheck. If symptom or indication goes away, replace original PCM.