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Home >> Infiniti >> 2002 >> G20 Automatic, RE4F03W >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - G20 >> Diagnostic Tests >> DTC P1148: Closed Loop Control >> Possible Causes
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Possible Causes

Malfunction is detected when ECM does not operate in closed loop. Possible causes are:

NOTE: DTC P1148 has one trip detection logic.
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