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HO2S
Need some help with a constant O2 sensor code P0134 Says insufficient activity had P0154 Also but i replaced both O2 sensors cleaned battery cables, now I have the P0134 Pending looking at data everything looks good but code comes back. Someone else pulled the... Login to read more. ![]()
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| Engine | 8.1 L |
Vehicle Data
2007 GMC C7500 Topkick C7C042 8.1L
| Engine | 8.1 L |

3 Replies Received
3 Replies Received