VIDEO

Acura DTC

Acura DTC P1491

Manufacture

Acura DTC

Code

P1491

Definition

EGR Valve Lift Sensor Insufficient Flow Detected

Description

Vehicle driven in closed loop at 1700-2500 rpm for over 10 minutes, and the PCM detected the EGR valve lift sensor (EGRV) signal indicated insufficient EGR flow during the EGR Monitor test.

Cause

  • EGR valve lift sensor is stuck, damaged or has failedEGR control solenoid circuit is open or shorted to groundEGR control solenoid valve is damaged or has failedPCM has failed

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