Another interesting read..deems to be a common issue!
misfire on cold..
http://rennlist.com/forums/997-forum/874203-05-997-1-c4s-misfire-bank-1-a.html
http://rennlist.com/forums/997-foru...1-997-carrera-chronic-check-engine-light.html
http://rennlist.com/forums/997-forum/642679-random-misfire-issues.html
Picked this out of it
I am aware of a similar situation where cold start misfire CELs were a challenge to resolve on a 2006 C2S.
The repair effort was focused on apparent cam timing variances.
A voltage variance (I don't know the details) was finally detected between cam banks and it was determined that an incorrect power lead had been tapped during a PSE retrofit.
the more i read..less its looking like a cat issue... :dont know:
misfire on cold..
http://rennlist.com/forums/997-forum/874203-05-997-1-c4s-misfire-bank-1-a.html
http://rennlist.com/forums/997-foru...1-997-carrera-chronic-check-engine-light.html
http://rennlist.com/forums/997-forum/642679-random-misfire-issues.html
Picked this out of it
I am aware of a similar situation where cold start misfire CELs were a challenge to resolve on a 2006 C2S.
The repair effort was focused on apparent cam timing variances.
A voltage variance (I don't know the details) was finally detected between cam banks and it was determined that an incorrect power lead had been tapped during a PSE retrofit.
the more i read..less its looking like a cat issue... :dont know: