 
				
	| 1998 Dodge Ram 1500 Laramie 5.2L MIL Lamp on Hello all. Scanner shows 1-3 volts on rear oxygen sensor at operating temp. Reading does fluctuate,but stays too high. If I unplug rear sensor, KOER and KOEO shows about 5 volts. Hooked DVOM to sensor signal wire, (harness side, sensor unplugged) averages abou... 
                        
                            FIX posted 8/19/2004
                               
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 | Message Closed w/FIX 
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| VIN | 1B7HF16Y7W | 
| Engine | 5.2 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage | 
Message Closed w/FIX
            
             Vehicle Data
 Vehicle Data
                1998 Dodge Ram 1500 Laramie
| VIN | 1B7HF16Y7W | 
| Engine | 5.2 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage | 
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          10 Replies Received
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