Those codes indicate misfires on bank 1, and the bank 1 camshaft position sensor reporting an out of limits issue. Could be wiring, the sensor, or it could be correctly reporting a timing issue.
https://rennlist.com/forums/boxster-and-boxster-s-986-forum/797262-986-boxster-s-02-p0343-camshaft-sensor-code.html
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1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
Last edited by Paul; 09-05-2017 at 06:23 PM.
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