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1995 Chevrolet Blazer 4.3L MIL Lamp on
After replace Cat and Muffler looked at code P0138 on
scanner. Rear o2 sensor bias voltage is over 1 volt when
ignition first turned on, drops to .400 after couple
minutes while o2 heater warms up. Will not drop any
farther.
FIX posted 8/5/2004
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Message Closed w/FIX
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Related Documents & Media | VIN | 1GNDT13WXS |
| Engine | 4.3 L / 6 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
1995 Chevrolet Blazer
| VIN | 1GNDT13WXS |
| Engine | 4.3 L / 6 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 |
Video