P0404 is set when EGR governor deviation is above the upper limit value. This code is due to be stick EGR with opening.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Signal monitoring | 1. EGR actuator stuck (open) 2. EGR actuator component | ||
Enable Conditions |
•
Engine running | |||
Threshold value |
•
EGR is exceeded to minimum set point. | |||
Diagnosis Time |
•
15 sec. | |||
Fail Safe | Fuel cut | NO |
•
- | |
EGR Off | YES | |||
Fuel Limit | YES | |||
Check Lamp | ON | |||
