FixVault
Home
›
Honda
›
2004
›
Civic DX, Standard
›
Repair and Diagnosis
›
Engine Performance
›
System
›
EGR System (Except Hybrid)
EGR System (Except Hybrid)
Expand All (for easy ctrl-f)
Collapse All
DTC Troubleshooting
Notes
DTC P0401: EGR Insufficient Flow Detected
DTC P0404: EGR Valve Insufficient Lift**, DTC P1491: EGR Valve Insufficient Lift*
DTC P0406: EGR Valve Position Sensor Circuit High Voltage**, DTC P1498: EGR Valve Position Sensor Circuit High Voltage*