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	 2015 Chevrolet Express 3500 LS 4.8L MIL Lamp on 
		
		po 171 -174, ive smoked the intake a few times, no smoke, fuel pressure reads 57.8 on my snap on and autel. car on and off, ( which has me a bit confused). under load fuel trims stabilize, at idle long term at 20-25 both banks. replaced maf with ac delco a... 
                        
                            Summary posted 6/9/2020
                             
                 
                            
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         Message Closed w/Summary 
	   
	   
	   
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| VIN | 1GAZGZFF2F | 
| Engine | 4.8 L / 8 cyl / FLEX | 
| Trans | 6-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / fuel injected | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) | 
| P0174 | Fuel System Too Lean (Bank 2) | 
Message Closed w/Summary
            
            
 Vehicle Data
                2015 Chevrolet Express 3500 LS
| VIN | 1GAZGZFF2F | 
| Engine | 4.8 L / 8 cyl / FLEX | 
| Trans | 6-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / fuel injected | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) | 
| P0174 | Fuel System Too Lean (Bank 2) | 
                            
22 Replies Received
          22 Replies Received
          
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