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Will hogan catted downpipe throw a code?

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Old Apr 22, 2010 | 01:52 PM
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Default Will hogan catted downpipe throw a code?

i was looking at getting a new downpipe just to squeeze alittle more power out of the car. i need something with a cat so i was thinking about this http://www.hoganperformance.com/DP7S.htm. it said there is a possibility of throwing a code and i was wondering if anyone had this problem.

and has anyone had any problems changing the cat in terms of inspection and such? im from new york and they really kill us.. thanks
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Old Apr 22, 2010 | 02:04 PM
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It did for me. Took a few startups but eventually the light came on.
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Old Apr 22, 2010 | 02:28 PM
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I've had the catted Hoan DP for almost 3 years and I have never had it throw a code ever..... Not even once....
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Old Apr 22, 2010 | 02:45 PM
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yeah i was reading reviews and it seems that its really up in the air if you will get a code or not. if it does throw one would i have to buy a diablo tuner or something like that to get rid of it?
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Old Apr 22, 2010 | 03:19 PM
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It took 3 days for my check engine light came on.
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Old Apr 22, 2010 | 03:41 PM
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First time with the downpipe it took about a month before it came on. Took it back off because when the code is thrown it disabled the remote start and I needed it for winter. After headers installed I put it back on and threw the code right away. Didn't matter though because I'm going to have it dyno tuned and have the code turned off.
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Old Apr 22, 2010 | 04:33 PM
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So, for those that did get the code, how do you "fix" it without getting a tune?
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Old Apr 22, 2010 | 04:50 PM
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Originally Posted by RickAKATed10
So, for those that did get the code, how do you "fix" it without getting a tune?
o2 simulator would work, I think there was a thread about this a while ago. I put a sim on my 02MCSS and it turned off the CEL.
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Old Apr 22, 2010 | 05:02 PM
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try this
http://www.bigdaddiesgarage.com/angled-cel-fix.html
or this
http://www.o2simulator.com/
I made one like the first type with a HELP brand spark plug spacer, workes great.
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Old Apr 22, 2010 | 08:29 PM
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Code here.
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Old Apr 23, 2010 | 12:31 AM
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It's probably a "catalyst low efficiency code" triggered by the rear O2, it's pretty standard...yeah.
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Old Apr 23, 2010 | 04:54 AM
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Originally Posted by Tappeter


TRUE!!! I just had this ordered!! I should be able to install this on the weekend! I went ahead and ordered that down pipe as well!! Sitting in the Garage waiting to be installed as we speak!! LoL!!
I just want to know any catches to make it an even easier install!! Looks like a very quick job, but, someone out there always figure out how to make the process more smooth than what it is!!
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Old Apr 23, 2010 | 08:13 PM
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Code but too lazy to fix
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Old Apr 23, 2010 | 11:45 PM
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One more time...

https://ls1tech.com/forums/ls4-front...ks-so-far.html

F.Y.I., The Diablo will only clear the code, but it will come right back. The only way you can remove the code with a Diablo is if you get a custom tune. Lew (06monteSS) can do one for you for about $50.
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