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	 2015 Audi A5 Quattro Cabriolet 2.0L MIL Lamp on 
		
		The car has a chronic P0299 underboost code. There are no vacuum leaks and common items have been changed. See above. The car runs fine but the code returns after 3-4 drive cycles. Fuel trim is ok and improved after vent valve was changed. Any help would b... 
                        
                            FIX posted 8/21/2020
                             
                 
                            
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           Message Closed w/FIX 
	   
	   
	   
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| VIN | WAUMFAFH9F | 
| Engine | 2.0 L / 4 cyl / GAS | 
| Trans | 8-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Hot, Under Load | 
Trouble Codes
| P0299 | Turbocharger Underboost Problem | 
Message Closed w/FIX
            
            
 Vehicle Data
                2015 Audi A5 Quattro Cabriolet
| VIN | WAUMFAFH9F | 
| Engine | 2.0 L / 4 cyl / GAS | 
| Trans | 8-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Hot, Under Load | 
Trouble Codes
| P0299 | Turbocharger Underboost Problem | 
                            
8 Replies Received
          8 Replies Received
          
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