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Old 07-23-2020, 03:52 PM   #4
Starter986
1998 Boxster Silver/Red
 
Join Date: Sep 2017
Location: 92262
Posts: 2,914
Quote:
Originally Posted by 993turbo View Post
Lately my Boxster (99' 2,5) have been acting up occasionally during start from cold. It is only now and then. Not every time.

When starting from cold it starts rough. Like its running on 5 cyl. After a little while it throws the CEL. Misfire Cyl3 (P0303 Cylinder 3 misfire) or last time it happened Misfire Cyl2. (P0302 Cylinder 2 misfire). After the rough start, which lasts like 3 - 5 secs, it runs like champ.

Spark plugs are new. AOS new.

What are the likely faults? Coil packs?
"Lately"? How long have you owned the car?
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1998 Porsche Boxster
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