P2A01 Diagnostic Trouble Code Discussion for May 2014
Heated Oxygen Sensor (Bank 1 Sensor 2) Closed Loop Performance
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| Help Request | Posted | |
| 2007 Dodge Ram 3500 ST 6.7L MIL Lamp on VIN: 3D7MX38A07 P2A01: O2 sensor 1/2 circuit performance. Code P2A01(O2 sensor 1/2 circuit performance) keeps returning after about 300km. Replaced both O2 sensors a year ago per TSB for code P2A01. Was good for about 9 months and now code has returned. Tested both O2 sensor heaters(good-3.4 ohms)Both have heater pow... |
May 01, 2014 |
