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Help!! HIGH-FLOW CATS-----Engine light On!!

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Old Jun 26, 2007, 10:49 PM
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Help!! HIGH-FLOW CATS-----Engine light On!!

I have just put a HIGH-FLOW CATS on my evo 8. Unfortunately, the engine light just show up, i think this is beacsue the HIGH-FLOW CATS. I know there are something on the market can fix this problem. Counld anyone tell me what i can get in order to fix this problem and where i can get it? I will much appreciate for your help!!! Evo Folks!!
Old Jun 26, 2007, 10:56 PM
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This should help you out: https://www.evolutionm.net/forums/sh...anical+CEL+fix
Old Jun 26, 2007, 11:28 PM
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Thanks! but i thought it should be a little machine.
Old Jun 26, 2007, 11:42 PM
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Dont waste your money on a perrin "little machine" unit. Get the piece pictured above or pick one up from gruppe-s for $13 and you will never see that SES light again.
Old Jun 27, 2007, 07:27 AM
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Originally Posted by w evo
^+1
I have this done with my test pipe and havent seen a SES light since i installed it. And it only took $5 and 30min.
Old Jun 27, 2007, 07:31 AM
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First off, most hfc's won't trip the cel.

Did you get the code pulled? If so what is it? Don't assume its your cat causing the cell until you pull the code and find out.
Old Jun 27, 2007, 07:33 AM
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Some highflow cats don't clean the emmisions enough (my Perrin highflow trips the SES), the little cheater plug thing is the best way. After that you might as well get a test pipe.
Old Jun 27, 2007, 07:46 AM
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As others have said, just do the anti-foulers. Mine took three months to throw a cel, but hasn't come back since. FYI its been a year and a half.
Old Jun 27, 2007, 11:13 AM
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Originally Posted by alexyim
I have just put a HIGH-FLOW CATS on my evo 8. Unfortunately, the engine light just show up, i think this is beacsue the HIGH-FLOW CATS. I know there are something on the market can fix this problem. Counld anyone tell me what i can get in order to fix this problem and where i can get it? I will much appreciate for your help!!! Evo Folks!!
get a random tech hfc and you wont get a code
Old Jun 27, 2007, 11:46 AM
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Originally Posted by alexyim
Thanks! but i thought it should be a little machine.
f the machine

https://www.evolutionm.net/forums/sh...d.php?t=114931
Old Jun 27, 2007, 11:48 AM
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Originally Posted by STOCK_EVOLUTION
^+1
I have this done with my test pipe and havent seen a SES light since i installed it. And it only took $5 and 30min.
+1 same here
Old Jun 27, 2007, 08:45 PM
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When you get exhaust and a flash does this still occur or does the flash remove the 2nd o2 monitoring?
Old Jun 27, 2007, 09:39 PM
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Originally Posted by Shadowpriest
When you get exhaust and a flash does this still occur or does the flash remove the 2nd o2 monitoring?
no, you still need it when u get a flash
Old Jun 28, 2007, 04:07 AM
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Did you even check the code to see if it was the cat? For all you know it could be anything (even though the cat is highly likely to cause it given your situation.) Which HFC did you purchase?
Old Jun 28, 2007, 12:27 PM
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I have used the "mechanical o2 fix" for about 2 1/2 years with my testpipe, Still no CEL


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