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	 2013 Ford Expedition Limited 5.4L MIL Lamp on 
		
		I am confused. Truck came in with P0030, P0135. Both banks tested at 3 ohms cold. spec is 3-30 ohms. With the ECM disconnected, both measured 2.7 ohms and dropping. I swapped the heater ground wires at the ECM, and code P0135 moved with the wire, whil... 
                        
                            FIX posted 3/21/2023
                             
                 
                            
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           Message Closed w/FIX 
	   
	   
	   
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| VIN | 1FMJU2A56D | 
| Engine | 5.4 L / 8 cyl / FLEX | 
| Trans | 6-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Intermittently | 
Trouble Codes
| P0030 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Relay Circuit Malfunction | 
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | 
Message Closed w/FIX
            
            
 Vehicle Data
                2013 Ford Expedition Limited
| VIN | 1FMJU2A56D | 
| Engine | 5.4 L / 8 cyl / FLEX | 
| Trans | 6-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Intermittently | 
Trouble Codes
| P0030 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Relay Circuit Malfunction | 
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | 
                            
4 Replies Received
          4 Replies Received
          
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