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2008 Outback 3.0 with P0021 error code


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Good job on the investigation, shame it isn't a great outcome. 
Did you do the compression test when the engine was cold or hot? Can make quite a bit of difference. You quite often see people doing them cold and having one or more cylinders low which then show up fine when done hot. 

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The compression test was done cold. I am really not sure how you would do a hot engine test on an EZ30, unless it was only luke warm, its so much of a pain getting the covers off, leads off, coils out, and spark plugs out when its cold that doing it when actually hot would be impossible without super low profile oven mitts on. I talked to a guy at Subtech in penrose, and he was super helpful and happy to have a yarn about my problem. He thought low compression wasnt the end of the world, although the metallic particles were weird, he thought I would be able to hear a bearing going by now if it was the problem. He suggested doing a bit more logging and cleaning of components and continuing to monitor it so will do that for now

Edited by retep130
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