What is P2002 : Engine Error code Causes Explained
This Tutorial covers the P2002 engine trouble code, which signals a diesel particulate filter issue. It indicates the filter is not effectively removing soot or particles, which might affect engine performance and emissions.
How to Identify a DTCs Number
To identify this DTC P2002 Engine Error code, a diagnostic scanner is used to read the error code from the vehicle’s onboard computer.
The trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
When the P2002 error occurs, it means that the engine is likely experiencing excessive backpressure in the exhaust system due to the filter being clogged or malfunctioning.
Causes of P2002 Code:
- Faulty Exhaust Backpressure Sensor:
If the sensor providing information about exhaust pressure is malfunctioning, it can trigger the P2002 code - Clogged DPF:
This is the most common cause, where the DPF is unable to effectively filter out soot particles due to excessive buildup. - Poor Quality Diesel Fuel:
Using low-quality diesel with high levels of contaminants can contribute to DPF clogging. - Exhaust Leaks:
Leaks in the exhaust system can disrupt the backpressure needed for proper DPF operation. - Damaged DPF:
Physical damage to the DPF itself, like cracks or a broken filter element, can impair its efficiency. - Sensor Issues:
Issues with other sensors related to exhaust flow or pressure can also trigger the code.
Risk Level of P2002 Error Code:
The “High Risk Level” designation appears when the vehicle’s Engine Control Module (ECM) detects a more serious issue with the DPF system. Its code generally indicates a more serious issue that might harm the engine or impair performance.
Common Car Brands Affected by P2002 Code:
The P2002 engine error code is commonly found in following list.
- BMW
- Volkswagen
- Mercedes-Benz
- Audi
Video: P2002 Engine Error code
FAQ’s
What is the P2002 engine error code?
The P2002 error code indicates a problem with the diesel particulate filter (DPF) in your vehicle. It typically means that the DPF is clogged or inefficient, failing to properly filter out harmful emissions.
What causes the P2002 error code?
This error code can be triggered by a variety of issues, including a clogged DPF, faulty sensors, or issues with the vehicle’s exhaust gas recirculation (EGR) system. It can also be caused by poor driving habits, leading to incomplete DPF regeneration.
What is the risk level of the P2002 error code?
The risk level of the P2002 error code is moderate to high. If not addressed, a clogged DPF can severely impact engine performance, fuel efficiency, and increase emissions, which may lead to more costly repairs.
What vehicles are affected by the P2002 error code?
The P2002 error code primarily affects diesel-powered vehicles, especially those from brands like Volkswagen, BMW, Audi, and Mercedes-Benz, all of which use diesel particulate filters.