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Old 07-19-2019, 06:02 AM   #1
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CEL codes p0300, p0301, p1319, p1313

So I was getting CEL for the SAI. I replaced the check valve, vacuum reservoir, vacuum lines with silicon hoses and just about anything else in the SAI system I could reach. Put car back together. Started car up and no more SAI codes but now getting missfire on cylinder 1 ONLY cylinder 1. CEL codes p0300, p0301, p1319, p1313. I checked the fuel injector for cyl 1 o-ring is fine. Any suggestions?

99 Porsche Boxster
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Old 07-19-2019, 12:33 PM   #2
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Check the coil for cracks.

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