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Downstream O2 operation
I have this truck and have come up with the diag of being a bad computer. I'm getting codes of P0138 and P0141 for the B1S2 O2 sensor. I have put an OEM sensor in and removed the aftermarket sensor. I've check the continuities for all 4 wires back to the ECM a... Login to read more. 
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15 Replies Received
| Engine | 5.7 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Mil Lamp On |
Vehicle Data
2012 Ram 1500 ST 5.7L Mil Lamp On
| Engine | 5.7 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Mil Lamp On |
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