2.5L Secondary Air Injection Sensor Codes - P2431 Jetta

VW 2.5L Secondary Air Injection Sensor Codes Due To Contamination

On 2005-2012 Jetta, Golf, Beetle, Passat and Rabbit models with the 2.5 CBTA-CBUA engine, the hose for the secondary air injection system can be contaminated by foreign particles.

Models

2005-2012 Jetta, Golf, Beetle, Passat and Rabbit models with the 2.5L CBTA-CBUA engine.

On models with the 2.5 CBTA-CBUA engine, the hose for the secondary air injection system can be contaminated by foreign particles. The contamination can cause the following codes:

• P2431: Secondary Air Injection Airflow/Pressure Bank 1 Sensor Circuit Range/Performance

• P2432: Secondary Air Injection System Air Flow/Pressure Bank 1 Sensor Circuit Low

• P2433: Secondary Air Injection System Air Flow/Pressure Bank 1 Sensor Circuit High

VW has released an updated sensor kit and secondary air injection pressure hose (part # 07K 198 125) that is less prone to contamination. On 2005-2008 vehicles, the sensor can be serviced separately using part number 07K 906 051. The kit includes an adapter harness for the new sensor.

You May Also Like

Audi TFSI/FSI: Oil Consumption And Carbon Buildup

Technical Service Bulletins can be valuable in helping solve vehicle problems. But sometimes, it takes multiple TSBs to find a pattern failure or the “root cause” of a problem. In the case of the Audi/VW 2.0L Fuel Stratified Injection (FSI) engine introduced in 2006, three problems related to engine carbon and fuel issues are connected

Technical Service Bulletins can be valuable in helping solve vehicle problems. But sometimes, it takes multiple TSBs to find a pattern failure or the “root cause” of a problem. In the case of the Audi/VW 2.0L Fuel Stratified Injection (FSI) engine introduced in 2006, three problems related to engine carbon and fuel issues are connected through multiple TSBs.

BMW Diagnostics: Low Airflow After Cabin Filter Replacement

Models:  F97 X3 M  F98 X4 M G01 X3 G02 X4 G20 3-Series SITUATION After replacing the microfilter during a previous service, the customer notices that the ventilation system airflow rate is noticeably less. This leads to perceived lower cooling power. The customer may also notice that external odors enter the vehicle. Related Articles –

Volvo Modular Engine Service

The Volvo Modular Series engine outlasted Ford and was retired by Geely. The Volvo modular design that can have four, five or six cylinders made its debut in 1990 in the 960 sedan as a six-cylinder and never stopped improving. Related Articles – Audi Active Suspension Service – How To Service BMW Tire Monitor Systems

BMW Dual Clutch Transmissions

BMW uses a wet clutch with separate inboard and outboard sections for the two sub-transmission.

BMW Cooling System Problems

Let’s take a closer look at this unique water pump, how to replace it efficiently and what other components should be replaced along with it.

Other Posts

Now Available – March’s Digital Edition of ShopOwner

The March issue includes technical and management content and is free to download.

Now Available – February’s Digital Edition of ShopOwner

February’s issue includes technical and management content and is free to download.

Tech Tip: Checking Transmission Fluid Levels When Cold or Hot

Checking the fluid level before the transmission has reached the specified temperature might cause a false reading

Why Do Turbos Fail?

In the 1980s, it was not uncommon for a turbocharger on some European vehicles to last only 30,000 to 40,000 miles. The failures were almost always in the center section and caused by the lack of oil to cool and lubricate the bearings and shaft.  Related Articles – Air Ride Diagnostics: Reservoirs and Compressors –