VW 2.5L Secondary Air Injection Sensor Codes

VW 2.5L Secondary Air Injection Sensor Codes

Air injection systems 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 (p/n 07K 198 125) that is less prone to contamination. On 2005-2008 vehicles, the sensor can be serviced separately using p/n 07K 906 051. The kit includes an adapter harness for the new sensor. 

You May Also Like

ADAS Calibration Aborts

Knowing the common “hiccups” can save you time and money.

If you have invested in the fixtures and scan tools to perform ADAS calibrations, you know most systems will walk you through the entire process. But, what happens when you follow the directions and the process still won’t initialize or complete or a malfunction light comes on?

Fuel Pumps and Cranking

Diagnosing the problem comes down to understanding what causes a loss of fuel pressure.

Electric Power Steering Diagnostics

Load management for steering systems.

Solving VW False Fuel Pressure Reading

First, verify the customer did not run out of fuel at the time the DTCs were stored.

vw steering wheel squeak
Tech Tips for Dorman’s OE FIX Steering Tie Rod End Assembly

Read the tech note for tips on installation of this unique fix.

Other Posts

VW DSG Maintenance

A DSG transmission is lighter than a comparable automatic with the same number of speeds.

VW HVAC Service

Volkswagen HVAC systems have come a long way.

Acura Frozen Starter Causes No Start

Why won’t the engine crank after the vehicle has been exposed to precipitation and then freezing temperatures?

Strut Sales

It all comes down to educating the customer about the benefits and asking for the sale.