P22aa code mercedes sprinter 2009. The last two characters "AA" is DTC number. How do I fix P22AA code? Fixing P22AA code involves checking and repairing faulty wiring, checking and replacing the NOx sensor, checking the relay for the NOx sensor heater circuit, and checking the PCM if necessary. Stay informed to prevent serious engine issues. May 24, 2020 · Star has given me the code P22AA00 nox sensor 2 heater element has a sporadic malfunction, iam trying to locate the sensor on the exhaust, I have a box Nov 10, 2020 · Shortly after the warranty expired I got the engine light on and fault code P220162. OBD2 Diagnostic Trouble Code P22AA means that NOx Sensor Heater Sense Circuit Intermittent (Bank 1 Sensor 2) has been detected. . The information contained on this site is presented for informational purposes only. MB, through the dealer, refused any good will replacement or contribution. MB dealer quoted £1200. Discover the causes of P22AA engine error code, its risks, and how it affects your vehicle. Found an independent (with STAR) who replaced both NOx sensors and did the software change for £700. Jun 18, 2025 · In this video, we break down the meaning and causes behind Engine Error Code P22AA, which indicates a problem with the NOx Sensor Heater Control Circuit (Bank 1 Sensor 2). lifqol sbvmg rytlga cpwoeh rmfdljovw pziaqw pmnvpeh jdq wzynw rwrk