P2002
Diesel Particulate Filter Efficiency Below Threshold Bank 1
2009-2013 Audi A3 2.0L TDI
High SeverityPowertrainGeneric (SAE)
Description
The DPF on bank 1 is not filtering soot effectively. Differential pressure across the filter is abnormal.
Symptoms
- Check engine light
- DPF warning light
- Reduced power
- Excessive black smoke
Common Causes
- Clogged/damaged DPF
- Failed differential pressure sensor
- Faulty DPF temperature sensor
- Oil contamination of DPF
Diagnostic Steps
- Check DPF differential pressure
- Inspect temperature sensors
- Attempt forced regeneration
- Check soot loading percentage
Repair Notes
Attempt forced regeneration first. If soot load exceeds limit, professional cleaning or DPF replacement required.
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
P2002 on Other Vehicles
Common Questions
What does code P2002 mean on a 2009-2013 Audi A3?
P2002 stands for "Diesel Particulate Filter Efficiency Below Threshold Bank 1". The DPF on bank 1 is not filtering soot effectively. Differential pressure across the filter is abnormal.
What are the symptoms of P2002 on a Audi A3?
Common symptoms of P2002 include: Check engine light, DPF warning light, Reduced power, Excessive black smoke.
What causes P2002 on a 2009-2013 Audi A3?
Common causes of P2002 include: Clogged/damaged DPF, Failed differential pressure sensor, Faulty DPF temperature sensor, Oil contamination of DPF.