P0138 Diagnostic Trouble Code Discussion for January 2005
Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage
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| Help Request | Posted | |
| 1995 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNDT13W1S P0138: o2 b1s2 high voltage. ... intermittantly sets p0138 - b1s2 o2 voltage high. The test tree in MOD has you check o2 for operation. Then you jumper o2 sensor high and low wires on ecm side and look for reading ( 35 mv. Got a reading of 18 mv. Tree then directs you to diagnostic aids w... |
January 13, 2005 | |
| 1995 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNDT13W1S P0138: o2 b1s2 high voltage. ... intermittantly sets p0138 - b1s2 o2 voltage high. The test tree in MOD has you check o2 for operation. Then you jumper o2 sensor high and low wires on ecm side and look for reading ( 35 mv. Got a reading of 18 mv. Tree then directs you to diagnostic aids w... |
January 14, 2005 |
