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Home >> Infiniti >> 1994 >> Q45 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/O Codes >> Symptoms >> Surging

Engine Controls - Tests W/O Codes: Symptoms: Surging

Check oxygen sensor(s).
Check EGR operation. See I - SYS/COMP TESTS article in the ENGINE PERFORMANCE Section.
Replace ECM with known good unit.

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