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Home >> Nissan-Datsun >> 2008 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS U1000 Through P0153 >> DTC P0102, P0103 MAF Sensor >> On Board Diagnosis Logic >> Fail-Safe Mode

Fail-Safe Mode

When the malfunction is detected, the ECM enters fail-safe mode and the MIL lights up.

FAIL-SAFE MODE

Detected items Engine operating condition in fail-safe mode
Mass air flow sensor circuit Engine speed will not rise more than 2, 400 rpm due to the fuel cut.
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