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	 2010 Audi A4 Quattro Avant 2.0L Rich 
		
		We need some help with this Audi A4. It has a rich condition and we can't seem to find the cause. It had a code for the O2 sensor (fuel ratio sensor) so that was replaced. At a previous visit the vehicle had both the crankcase vent and the oil separator re... 
                        
                            FIX posted 8/28/2020
                             
                 
                            
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| VIN | WAUWFAFL2A | 
| Engine | 2.0 L / 4 cyl / GAS | 
| Trans | 6-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / Direct Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | Rich | 
| Occurs | Always | 
Trouble Codes
| P2178 | Fuel Trim System Lean At Idle Speed (Bank 1) | 
| P2188 | Fuel Trim System Rich At Idle Speed (Bank 1) | 
| P2237 | Air Fuel Sensor (Bank 1 Sensor 1) I/P Line High Voltage | 
| P2271 | Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich | 
Message Closed w/FIX
            
            
 Vehicle Data
                2010 Audi A4 Quattro Avant
| VIN | WAUWFAFL2A | 
| Engine | 2.0 L / 4 cyl / GAS | 
| Trans | 6-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / Direct Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | Rich | 
| Occurs | Always | 
Trouble Codes
| P2178 | Fuel Trim System Lean At Idle Speed (Bank 1) | 
| P2188 | Fuel Trim System Rich At Idle Speed (Bank 1) | 
| P2237 | Air Fuel Sensor (Bank 1 Sensor 1) I/P Line High Voltage | 
| P2271 | Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich | 
                            
11 Replies Received
          11 Replies Received
          
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