P0138 Diagnostic Trouble Code Discussion for August 2009
Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage
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| Help Request | Posted | |
| 1999 Infiniti G20 2.0L MIL Lamp on VIN: JNKCP11A3X P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Input (Rich Shift). ... was a straight forward repair, kicking my butt. Came in with P0138. Which sets when the rear o2 does not go above .480 volts. With the original sensor it starts at .290 volts and slow went to .240 volts and only fluctated to maybe .260 volts. Checked readi... |
August 10, 2009 | |
| 1999 Jeep Wrangler Sport 4.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 1J4FY19SXP P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage. ... front o2 sensor replaced. came back a week later light on, code for rear sensor, which had been replaced 8 months previous. Replaced rear again. Came back light on, code p0138. Customer has been too busy until now to brin... |
August 31, 2009 |
