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I have codes P0300, P0301, P0303 & P0305 which are misfire codes also codes P0261, P0267 & P0273 which are fuel injector circuit low what would cause just this bank to be out
Vehicle: 2005 Buick LaCross CXS 3.6L

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HI there,

Usually there is an issue with the timing or the cam sensor that will cause only one bank to have issues. It could also be an issue with the wring harness to that bank or a bad pcm.

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