| 
	 2004 Ford F-150 Lariat 5.4L MIL Lamp on 
		
		Vehicle came in origanally for hard start rough idle, found broken clip at maf sensor, repaired and gone it was. Truck came back for ses light, found poo59 replaced ecm and 02 problem solved(ecm was not applying ground on heater circuit). During drive cycle se... 
                        
                            FIX posted 9/9/2009
                             
                 
                            
                    iATN Members:  
        Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle 5 Replies Received (View Replies)5 Replies Received (Hide Replies)
       | 
		  
		      
          Message Closed 
	   
	   
	   
	    | 
| VIN | 1FTPX145X4 | 
| Engine | 5.4 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) | 
| P0174 | Fuel System Too Lean (Bank 2) | 
Message Closed
            
            
 Vehicle Data
                2004 Ford F-150 Lariat
| VIN | 1FTPX145X4 | 
| Engine | 5.4 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) | 
| P0174 | Fuel System Too Lean (Bank 2) | 
                            
5 Replies Received
          5 Replies Received
          
  Related Documents & Media