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		986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions
HELP Engine Light w Many Codes

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04-05-2021, 10:40 AM	#7
Fnred98 Registered User Join Date: Aug 2012 Location: Pgh Posts: 9	Replaced Coil Pack #4 and #5, this resolved the CEL and the car is running so much better. 1. Should i replace the other 4 coil packs ? 2. It seems like there is some hesitation which I believe could be a semi blocked Cat Converter. Will take some Temp Readings within the next few days to answer that questions. Has anyone here replaced there Cat with a Cat By Pass, which unit did you use and did the CEL come on? Thanks for all your replies.

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