If exhaust gas re-circulation rate is below set-point, ECM sets DTC P040100. This fault might be caused by clogged EGR cooler and leakage on intake/exhaust manifold.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Signal monitoring | 1. Poor connector connection 2. Clogged EGR cooler 3. Clogged or leaked exhaust gas re-circulation path 4. Leakage on intake manifold 5. Leakage on exhaust manifold | |
Enable Conditions |
•
Engine running | ||
Threshold Value |
•
Exhaust gas re-circulation rate is below set-point | ||
Diagnostic Time |
•
15 sec. | ||
Fail Safe | MIL |
•
On | |
