CEL P0491 on 02 Turbo

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  blacknight
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  CJ_Boxster
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Postby CJ_Boxster » Fri May 16, 2008 4:12 pm

When Secondary AirInjection fault codes appear, you'll need to have someone with a PST2 run a diagnostic on the Air Injection system. The PST2 can have the vacum pump manual turn on to check for vacum issues and have the Electronic change over valves switch on to verify functionality... Without a PST2 tester, you might end up replacing afew parts you didnt need to in your secondary air injection system... Its made up of many check valves electronic and mechanical and a Vacum pump. This wil definatly require a PST2 for quick painless repair.

I have 2 secondary air injection Pcodes for both banks and since my box has alot of miles im just going to buy all the components and replace them... minus the vacum pump.
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  CJ_Boxster
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Postby CJ_Boxster » Fri May 16, 2008 4:27 pm

Heres a diagram of the Secondary Air Injection system looks like on a 996 TT and GT2. ITS ALOT OF PARTS!
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996 TT and GT2 airinjection.JPG
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  Lefteris (Athens-Greece)
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Postby Lefteris (Athens-Greece) » Sat May 17, 2008 4:04 am

blacknight wrote:CJ - that is a scary diagram.

I'm going to have Victor fix it ... just thinking I might learn something by asking and I have. Thanks.


Let us know about this when you fix it, I am sure that it is nothing big but it may need some time to find the problem!
Check the Vacuum system leaking first!
PORSCHE 996 R turbo RUF 2003
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Postby CJ_Boxster » Fri Jun 06, 2008 12:38 pm

blacknight wrote:I took it into the dealership to have them diagnose and found that it is one of my Diverter Valves leak. So, you guys are right with the diagnostic.

I always want to change the DVs to aftermarket type so now is the perfect opportunity. Which aftermarket company makes good DV units?


I have to translate this for Steve.

Translation ~~~ DAYUM, Deala says my Blow-off Valvez be giving me da Boost lag, dats why i cant swoop wit da quickness when i b scoop'n up dem 2 dolla hoes! Any mofos know if greddy or HKS make a sweet tweety bird sound'n BOV's for my whip?~~~
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  fu03steve
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Postby fu03steve » Fri Jun 06, 2008 8:16 pm

CJ_Boxster wrote:
blacknight wrote:I took it into the dealership to have them diagnose and found that it is one of my Diverter Valves leak. So, you guys are right with the diagnostic.

I always want to change the DVs to aftermarket type so now is the perfect opportunity. Which aftermarket company makes good DV units?


I have to translate this for Steve.

Translation ~~~ DAYUM, Deala says my Blow-off Valvez be giving me da Boost lag, dats why i cant swoop wit da quickness when i b scoop'n up dem 2 dolla hoes! Any mofos know if greddy or HKS make a sweet tweety bird sound'n BOV's for my whip?~~~


:LOL: :LOL: :LOL:
you've read my mind
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  FastForwardWheels
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Postby FastForwardWheels » Sat Jun 07, 2008 12:11 am

CJ_Boxster wrote:
blacknight wrote:I took it into the dealership to have them diagnose and found that it is one of my Diverter Valves leak. So, you guys are right with the diagnostic.

I always want to change the DVs to aftermarket type so now is the perfect opportunity. Which aftermarket company makes good DV units?


I have to translate this for Steve.

Translation ~~~ DAYUM, Deala says my Blow-off Valvez be giving me da Boost lag, dats why i cant swoop wit da quickness when i b scoop'n up dem 2 dolla hoes! Any mofos know if greddy or HKS make a sweet tweety bird sound'n BOV's for my whip?~~~


DUDE!!!!!

That is a sick post!!!!!! Nice.... :LOL: :LOL: :LOL:

I'm sending 50+ POINTS your way just for making me laugh....

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  CJ_Boxster
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Postby CJ_Boxster » Wed Jun 18, 2008 4:00 pm

Richard, Any progress on your issue yet?
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