P1407
Exhaust Gas Recirculation Flow Out Of Self-Test Range
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Rough engine idling
- Loss of engine power
- Increased fuel consumption
- Deterioration of vehicle dynamics
- Check Engine light comes on
Causes
- EGR valve malfunction (stuck or clogged)
- Vacuum leak in the EGR system
- Contamination of the EGR channel with deposits
- Problems with the EGR valve electrical circuit
- Malfunction of EGR valve position sensor (if installed)
How to Fix
- Check the condition of the EGR system pipes and connections for leaks
- Clean the EGR valve and channels from carbon deposits
- Check the resistance and operation of the EGR solenoid valve
- Inspect the wiring harness and contacts for damage
- Replace EGR valve if necessary