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	 2005 Toyota Tacoma 2.7L MIL Lamp on 
		
		This truck came in the day before I went on vacation with codes P0136 and P0138. With the high mileage and lack of time I put on a new O2 sensor and shipped it down the road. o2 was working when it left. 3 days later light is back on, customer returned when I ... 
                        
                            FIX posted 5/30/2014
                             
                 
                            
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| VIN | 5TEUX42N45 | 
| Engine | 2.7 L / 4 cyl / GAS | 
| Trans | 5-speed Standard | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0136 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction | 
| P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage | 
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 Vehicle Data
                2005 Toyota Tacoma
| VIN | 5TEUX42N45 | 
| Engine | 2.7 L / 4 cyl / GAS | 
| Trans | 5-speed Standard | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Always | 
Trouble Codes
| P0136 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction | 
| P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage | 
                            
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          6 Replies Received
          
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