- Audis don't look nearly as smooth if they're backfiring.woman driving small pink coupe car fast speed image by alma_sacra from Fotolia.com
Because of advances in engine design in the past 20 years, cars do not backfire nearly as often as they once did. If your Audi is backfiring, this could be a sign of several different problems within your engine, including a mixture of air and fuel that is too rich. Most of these problems could lead to greater engine damage if you do not get them checked out after you hear the backfiring.
Faulty Sensor Signals
- One cause of a rich mixture of air and fuel could be errors in signals from your Audi's oxygen or coolant temperature sensors. These signals tell the engine to change the amount of air and fuel flow, resulting in a backfire.
Clogs in the Monolithic Converter
- If your Audi's monolithic converter has a clog, it will blow through and result in a backfire. Afterwards, you'll notice a huge jump in your engine's power.
Damaged Catalytic Converter
- If the catalytic converter in your Audi is damaged, one of the results could be backfire. Because the converter is designed to remove toxic materials from your Audi's emission system, anything interfering with the converter's diversion of air flow could increase the fuel proportion in the mixture, making it too rich and producing a backfire.