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	 1999 Volkswagen Passat GLS 2.8L Exhaust Noise 
		
		after cold start and during warm up - during active air injection phase - car will pop loudly if the throttle is punched and released - i have isolated the noise to the right bank only and it is popping inside the cat. the air injection is active during this t... 
                        
                            Summary posted 3/20/2007
                             
                 
                            
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         Message Closed w/Summary 
	   
	   
	   
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| VIN | WVWMD63B4X | 
| Engine | 2.8 L / 6 cyl / GAS | 
| Trans | 5-speed Automatic (Electronic) | 
| Delivery | FI / MPFI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Exhaust Noise | 
| Occurs | Cold | 
Message Closed w/Summary
            
            
 Vehicle Data
                1999 Volkswagen Passat GLS
| VIN | WVWMD63B4X | 
| Engine | 2.8 L / 6 cyl / GAS | 
| Trans | 5-speed Automatic (Electronic) | 
| Delivery | FI / MPFI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Exhaust Noise | 
| Occurs | Cold | 
                            
9 Replies Received
          9 Replies Received
          
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