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Home >> Infiniti >> 2012 >> FX50 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (VK50VE) - FX50 - DTC U0101, U0113, U1003, U1001, U1024 & P006A Through P0133 / P0153 >> DTC P0078, P0084: EVT Control Solenoid Valve >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0078 Exhaust valve timing control solenoid valve (bank 1) circuit An improper voltage is sent to the ECM through exhaust valve timing control solenoid valve.
  • Harness or connectors (Exhaust valve timing control solenoid valve circuit is open or shorted).
  • Exhaust valve timing control solenoid valve
P0084 Exhaust valve timing control solenoid valve (bank 2) circuit
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