996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

CEL Codes P0491& P0492

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  #46  
Old 12-20-2016 | 09:06 AM
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CEL codes 0491/2

As I posted earlier, it seems that replacing both Diverter Valves solved the problem with these codes
 
  #47  
Old 12-20-2016 | 09:46 AM
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g-50cab is infamous around these parts
Originally Posted by vr4henry
Installed my DV's and f-hose yesterday. Cleared codes and haven't seen them since. Car is making .9/1.0 in 1st/2nd now opposed to .8/.9 and definitely feels better between shifts. Considering I could hear the old DVs "hooting" I was loosing a bit of air I think.

OP I'd do what Larry mentioned and check the screws.

-Henry
Getting ready to do this - how hard of a job is it?
 
  #48  
Old 12-20-2016 | 10:08 AM
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Originally Posted by g-50cab
Getting ready to do this - how hard of a job is it?
Depends on the size of your hands lol.

Not super difficult. One of the first things I did on my car when I got it, working slowly and being careful because I was unfamiliar it was maybe an hour.
 
  #49  
Old 12-20-2016 | 10:39 AM
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Big hands - but pretty mechanically oriented - already changed out radiators
 
  #50  
Old 12-20-2016 | 12:36 PM
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Originally Posted by g-50cab
Big hands - but pretty mechanically oriented - already changed out radiators
You'll be fine.
 
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