P0101 code today pointing to MAF, got a P0020 I think it was last week point to VVT cam sensor or actuator. It has the Impala MAF in it for about a week now, so don't think that's it. KT's cobalt was home so I should have swapped some parts with it but had other stuff to do. Each part is about $60 so don't want to just start buying without a clue of which one is really wrong.
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