Thread: P0340 code
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Old 11-16-2017, 02:33 PM   #6
Jon Boy
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Join Date: Jul 2007
Location: Utah
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2001 SC2
Default Re: P0340 code

I tested the compression, and it was around 180 on all cylinders. I think the lowest was 178.

The cylinder 1 and 4 misfire counts are definitely filling up, so maybe I should jump over to the P0300 diagnostic flowchart. Do you happen to have that one too?

Also, what does LAST TEST mean on that flowchart?

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