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	 2011 GMC Canyon SLE 2.9L MIL Lamp on 
		
		This vehicle was brought in with secondary air pump running at all times) we disconnected the air pump to test pcm and relay operation and all seems normal applies correctly and relay shuts off when commanded The air pump was running at all times even with key... 
                        
                            FIX posted 11/6/2017
                             
                 
                            
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| VIN | 1GTC5LF94B | 
| Engine | 2.9 L / 4 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / sefi | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Intermittently | 
Trouble Codes
| P0411 | Too Much Or Too Little Pulsed Air Injection | 
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 Vehicle Data
                2011 GMC Canyon SLE
| VIN | 1GTC5LF94B | 
| Engine | 2.9 L / 4 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / sefi | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Intermittently | 
Trouble Codes
| P0411 | Too Much Or Too Little Pulsed Air Injection | 
                            
6 Replies Received
          6 Replies Received
          
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