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Old 07-19-2010 | 07:18 PM
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Default Failed CA Smog

My Porsche failed smog testing today. It was explained to me that it failed at 15mph in the category of (essentially) unburnt fuel..it registered 55, with a maximun allowable reading of 48. I expected it to fail the visual inspection, not the sniff test (see my signature for mods). The only mods that I have added since the last smog test, are the high flow cats and the LWFW.

The mechanic thought it failed due to the GIAC flash (which I told him about after the test). I thought that would be a simple fix...have it flashed back to stock, or get a spare junkyard ECU. The business that did the flash no longer works with GIAC. The ECU is VIN specific. A new ECU is just shy of $5,000 from Porsche.

The company that did the flash suggested that the high flow cats were more likely the cause of the problem. I guess I should not have sold my stock cats. Does anybody have a set of stock cats to sell? If not, Ebay here I come.
Old 07-19-2010 | 07:23 PM
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pm sent
Old 07-19-2010 | 07:27 PM
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Hey Mark, that's a drag.
I guess the cats are the cause; mine just passed again a couple months ago, I'm about 70k miles now.

Seems like you should be able to find a cheap set.
Kind of a drag, but I'm sure it'll work out for you, GL.
Old 07-19-2010 | 07:44 PM
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ED, PM replied. Thanks.

Dave, there is a set on ebay, cheap...if I can't find them here. I sold mine because they were a pain to store in my garage...that will teach me. Thanks. CA smog sucks.
Old 07-19-2010 | 08:23 PM
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I still have the cats from my 99 2.5L Boxster. Can they be cut and welded to work in your application for this time of year?
Old 07-19-2010 | 08:40 PM
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Hey Dell, thanks for the offer. I don't know if they can be made to work. There is a set currently on ebay for my car or Ed has a set for my car. Does anybody know what Ed should sell them for? Thanks.
Old 07-19-2010 | 08:41 PM
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Originally Posted by Mfletch
CA smog sucks.
The smog and car requirements really do suck. Good luck getting out of there.
Old 07-19-2010 | 08:42 PM
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Mark, just let me know if the other sets fall through. If you can put something together with mine to get past smog, just cover my costs to ship to you and they are yours.

Obviously you probably prefer the 996 sets but just know mine are here if you want them.
Old 07-19-2010 | 08:45 PM
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Dell, that is an incredibly generous offer. Thank you. I will let you know if I can't find a set for the 996.
Old 07-19-2010 | 08:47 PM
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No problem at all. Anything to help out. I can't imagine how difficult it is to drive a car in Kalifornya with all those insane rules.
Old 07-19-2010 | 09:54 PM
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Mark.... you should be able to go to any GIAC dealer. Your stock program is VIN specific and should be stored in the main GIAC server.... is the high flow cats 200 cell? I cant believe it failed.
Old 07-19-2010 | 11:21 PM
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Originally Posted by Mfletch
My Porsche failed smog testing today. It was explained to me that it failed at 15mph in the category of (essentially) unburnt fuel..it registered 55, with a maximun allowable reading of 48. I expected it to fail the visual inspection, not the sniff test (see my signature for mods). The only mods that I have added since the last smog test, are the high flow cats and the LWFW.

The mechanic thought it failed due to the GIAC flash (which I told him about after the test). I thought that would be a simple fix...have it flashed back to stock, or get a spare junkyard ECU. The business that did the flash no longer works with GIAC. The ECU is VIN specific. A new ECU is just shy of $5,000 from Porsche.

The company that did the flash suggested that the high flow cats were more likely the cause of the problem. I guess I should not have sold my stock cats. Does anybody have a set of stock cats to sell? If not, Ebay here I come.
As of this May failing was 58 ppm (HC), not 48 at 15mph.

Failing at 25mph was 42ppm.

Sincerely,

Macster.
Old 07-20-2010 | 12:11 AM
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Too bad Mark, just another issue to deal with. Nice to see so many generous offers, hope it's easily solved for you.
Old 07-20-2010 | 06:59 AM
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CA smog sucks! Mine didn't pass either.
Old 07-20-2010 | 11:24 AM
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You could borrow my ECU if you lived closer to see if that allowed you to pass. Swapping cats sounds like quite a bit of effort - best of luck!



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