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Component Description NEEDLE LIFT SENSOR (NLS) The needle lift sensor is built into the No. 1 nozzle. Its inductive On Board Diagnosis Logic DTC Malfunction is detected when .... Check Items (Possible Cause) P1240 I An incorrect signal from the sensor is sent to ECM. I Harness or connectors I Needle lift sensor P1242 DTC Confirmation Procedure NOTE: WITH CONSULT-II 1) Turn ignition switch to “ON” position and select “DATA MONI- TOR” mode with CONSULT-II. 2) Start engine. WITHOUT CONSULT-II 1) Start engine. and then turn to “ON” position. 4) Perform “Diagnostic Test Mode II” (Self-diagnostic results). NEF689 DTC P1240 NEEDLE LIFT SEN, DTC P1242 NEEDLE LIFT SE (RPM) TD27Ti EC-450 |