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repaced 02 down stream ,repacled pulgs ,cleaned thoudl body, had the following codes before po305,po300p,and now I have a po141p,po141 ,iam now looking for the fuse for the 02

Vehicle: Chevrolet 2000 silverado k1500 4.8

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P0141 is for oxygen sensor bank 1 sensor 2, the P means pending which happens when the come does not replicate the problem again. 

the is no fuse for the oxygen sensor, there is a service bulletin that says you may need an PCM update 

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