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Title: Questions about SAI, N249, etc. Post by: Terror_Flynn on April 07, 2014, 07:10:44 AM Hi!
I wonder if somebody wants to explain pros and con's and functions about evap, SAI, N249 valve etc. ? (1.8t) This is probably basic stuff for most of the users on this forum I think. But I wanted to do this thread anyway, maybe it helps a few others too. If I delete those things what problems can come up, smog test failures? Loss of safety features for the engine? What things can I benefit from when I do the deletes? Could be good to have the all the answers and explanations wrapped up in one thread. Title: Re: Questions about SAI, N249, etc. Post by: adam- on April 07, 2014, 08:41:14 AM With regards to the N249:
http://www.audizine.com/forum/showthread.php/554859-N249-delete-Why-you-should-not-do-it SAI is just removed because the pump fails, and it takes up space. It's used to heat up the cat faster, so with a decat is becomes redundant. That, and it takes up valuable bay space! :) Evap only works for 5k - it keeps the hippies happy. Code it out, the ECU doesn't throw a code because it knows not to look for it. Title: Re: Sv: Questions about SAI, N249, etc. Post by: Terror_Flynn on April 09, 2014, 12:32:47 PM I'm gonna keep the N249.
If I delete the SAI, can I still pass an emission test if I drive the car long enough to heat up the cat before the test? Am I gonna smell gas fumes if I do the EVAP delete? Do I need to get resistors for those deletes? Am I gonna feel some sort of difference with rougher idle or something like that? (Not a problem, just curious) I want to make some more space under the hood and also delete stuff that are prone to break on an old car like mine. But in the same time I want to pass emission tests. |