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Old Feb 28, 2010 | 03:47 AM
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Check engine light problem

Hey guys, i just installed a fabspeed V3 exhaust with 200cell cat on my 08 TT, and i am having the check engine light problems, I am running the lim mode which only allow me to go up to 0.6bar. I tried to take off the battery for 5 mins and let it reset but it doesnt work. Anyone else have the same problem? Do i need to reset the computer inorder to solve the problem
 
Old Feb 28, 2010 | 04:33 AM
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you need a flash ..
 
Old Feb 28, 2010 | 07:10 AM
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Either a flash or O2 sensor extension\simulators will fix this, on mine Softronic flash fixed it.
 
Old Feb 28, 2010 | 09:37 AM
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Originally Posted by venkatreddytx
Either a flash or O2 sensor extension\simulators will fix this, on mine Softronic flash fixed it.

yes me too ,, softronic will do it


pm dan in vividracing he will give you great price

good luck
 
Old Feb 28, 2010 | 09:49 AM
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You should not require a software flash to make a standard aftermarket exhaust with 200 cell cats work. What code is the CEL showing?
 
Old Feb 28, 2010 | 10:20 AM
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i have the same issue after mine and was coilpacks.when i rev the car over 5000 rpm i get cel and misfire
 
Old Feb 28, 2010 | 11:25 AM
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If you have a 200 cell exhaust you do NOT need a flash to get rid of the cell. High quality 200 cell cats are not suppose to give you a cell as far as I know, 100 cells and bypass will. You either have a faulty cat or something else is wrong.
 

Last edited by Porsche Boy; Feb 28, 2010 at 11:26 AM. Reason: wording
Old Feb 28, 2010 | 01:23 PM
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Exactly right, you have bad cats.
 
Old Feb 28, 2010 | 06:20 PM
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I have been reading where HJS 200 cell cats shouldn't cause CEL on the contrary I have read threads like this that they do cause CEL.

From what I read Fabspeed uses HJS cats.

I read a thread where FVD exhaust caused a CEL to show up and a flash fixed it.

My personal opinion is that 200 Cell cats will cause CEL to show up.

It is a good idea to read out the code to make sure you are getting it due to
"Catalytic Inefficiency Code" and not something else.
 
Old Mar 1, 2010 | 12:00 AM
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Originally Posted by venkatreddytx
My personal opinion is that 200 Cell cats will cause CEL to show up.
My car has been running a 100 cell Europipe for almost 3 years and never had a CEL on it. And it wasn't flashed for it either.

Originally Posted by venkatreddytx
It is a good idea to read out the code to make sure you are getting it due to
"Catalytic Inefficiency Code" and not something else.
That's exactly what should be done rather than assuming it's one thing or another. CEL covers a WHOLE lot of things.
 
Old Mar 1, 2010 | 12:48 AM
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Originally Posted by tt surgeon
exactly right, you have bad cats.
+1 ^^
 
Old Mar 1, 2010 | 02:34 AM
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Originally Posted by ruf_turbo
My car has been running a 100 cell Europipe for almost 3 years and never had a CEL on it. And it wasn't flashed for it either.



That's exactly what should be done rather than assuming it's one thing or another. CEL covers a WHOLE lot of things.
I'm also running on 100cel Europipe, i had it for a few months without flashing it and never had a problem, plus it sounds great
 
Old Mar 4, 2010 | 08:30 AM
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Most 200cell cats throw a CEL from a cat inefficiency. The light does nothing but look annoying. You can keep turning it off, or spend the extra money on the ECU Flash which raises the 02 limit so you dont have this problem and gives you an extra 60+HP

www.vrtuned.com
 

Last edited by vividracing; Feb 2, 2014 at 08:48 PM.
Old Mar 4, 2010 | 12:35 PM
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thanks for the comments and helps guys, problem solved
 
Old Mar 4, 2010 | 01:53 PM
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I had FS without HJS cats, CELs constantly. Switched to HJS, no CELs.
I have since gone with FVD, no CELs ever.
 


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