P1402
EGR Function Open
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Check Engine Light Is On
- Unstable engine idling
- Reduced engine power
- Increased fuel consumption
- Detonation during acceleration
Causes
- Open or short circuit in the EGR valve control circuit
- EGR solenoid valve malfunction
- Wiring harness damage
- Problems with the engine control unit
- Mechanical failure of the EGR valve
How to Fix
- Check the integrity of the EGR valve control circuit
- Check the resistance and operation of the solenoid valve
- Inspect the wiring harness for damage
- Check the operation of the EGR valve
- If necessary, replace the EGR valve