Audi S8 B121B Engine Trouble Code

Audi S8 B121B code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

Audi S8 B121B Code Meaning :

When you check Audi S8 car engine light came on code B121B the reason should be . However manufacturer may have a different definition for the B121B OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on our car models.

B121B OBD-II Diagnostic Body (B) Trouble Code Description

B121B engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For B121B Code

The reason of B121B OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

B121B code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

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