 
				
	| 2003 Chevrolet Astro 4.3L MIL Lamp on Hello. I have a deceptively simple problem that's giving me headaches. This Astro came in with a p0135 problem. First thing I did was check fuses, although all three of them are powered by the same one. That was ok, so I checked and the heater inside the senso... 
                        
                            FIX posted 8/4/2016
                               
                    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 15 Replies Received (View Replies)15 Replies Received (Hide Replies)
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| VIN | 1GNEL19X83 | 
| Engine | 4.3 L / 6 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / csfi | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
Trouble Codes
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | 
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             Vehicle Data
 Vehicle Data
                2003 Chevrolet Astro
| VIN | 1GNEL19X83 | 
| Engine | 4.3 L / 6 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection / csfi | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
Trouble Codes
| P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | 
 15 Replies Received
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 15 Replies Received
          15 Replies Received
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