 
				
	| 2003 Ford F-250 Super Duty XL 5.4L MIL Lamp on truck came to me from car dealer with mil lamp on both heater faults codes in memory, ohmed o2's from ecm plug with ecm unplugged one ohm'd open, the other out of range, installed two new motorcraft 02's. codes came back within a week sat on power feed didnot ... 
                        
                            Summary posted 8/18/2006
                               
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 | Message Closed w/Summary 
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| VIN | 1FTNX21LO3 | 
| Engine | 5.4 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI / mpi | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | 
| P0155 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction | 
Message Closed w/Summary
            
             Vehicle Data
 Vehicle Data
                2003 Ford F-250 Super Duty XL
| VIN | 1FTNX21LO3 | 
| Engine | 5.4 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI / mpi | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | 
| P0155 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction | 
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