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Home >> Infiniti >> 1990 >> M30 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Code Charts >> Code 31: Engine Control Unit (Ecu)

Code 31: Engine Control Unit (Ecu)

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Fig 1: Code 31: Engine Control Unit (ECU) Flow Chart
G90E18733Courtesy of NISSAN MOTOR CO., U.S.A.