Honda P1491: EGR Valve Lift Sensor Insufficient Flow Detected
Is your scanner showing Honda P1491?
No worries. We'll show you what it means and how to deal with it.
Honda P1491: EGR Valve Lift Sensor Insufficient Flow Detected
OVERVIEWWhat Does The Honda P1491 Code Mean?
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.
What Are The Potential Causes Of The Honda P1491 Code?
- EGR valve lift sensor is stuck, damaged or has failed
- EGR control solenoid circuit is open or shorted to ground
- EGR control solenoid valve is damaged or has failed
- PCM has failed
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> X AUTOHAUX Vapor Canister Purge Valve Solenoid
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Honda PCM
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Honda DTC Codes Reference for P1491 – Page 6.
