P0402
EGR Flow Excessive Detected
2012-2016 Ferrari FF 6.3L V12
Moderate SeverityPowertrainGeneric (SAE)
Description
The EGR system is flowing too much exhaust gas.
Symptoms
- Check Engine Light
- Rough idle
- Stalling
- Surging
- Poor acceleration
Common Causes
- EGR valve stuck open
- Faulty EGR solenoid
- Vacuum leak to EGR valve
- Faulty DPFE sensor reading low
Diagnostic Steps
- Check EGR valve for stuck-open condition
- Test EGR solenoid
- Check vacuum lines
- Test DPFE/position sensor
Repair Notes
Replace EGR valve if stuck open. Repair vacuum lines.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0402 on Other Vehicles
Ferrari 296 GTB
2022-2024 3.0L V6 Hybrid
Ferrari 296 GTS
2022-2024 3.0L V6 Hybrid
Ferrari 360 Challenge Stradale
2003-2005 3.6L V8
Ferrari 360 Modena
1999-2005 3.6L V8
Ferrari 430 Scuderia
2007-2009 4.3L V8
Ferrari 456 GT
1993-2003 5.5L V12
Ferrari 458 Italia
2009-2015 4.5L V8
Ferrari 458 Speciale
2013-2015 4.5L V8
Common Questions
What does code P0402 mean on a 2012-2016 Ferrari FF?
P0402 stands for "EGR Flow Excessive Detected". The EGR system is flowing too much exhaust gas.
What are the symptoms of P0402 on a Ferrari FF?
Common symptoms of P0402 include: Check Engine Light, Rough idle, Stalling, Surging, Poor acceleration.
What causes P0402 on a 2012-2016 Ferrari FF?
Common causes of P0402 include: EGR valve stuck open, Faulty EGR solenoid, Vacuum leak to EGR valve, Faulty DPFE sensor reading low.