Vishnu Catted DP = Check Engine???

Focusedintntions · 03-09-2012, 06:24 AM

Anybody else experience this? Mine came on last night driving home late. Was under the impression that having the catted version of the DP would eliminate the "service engine soon" light.

Rodzilla · 03-09-2012, 07:04 AM

Maybe because they are Hi-flow?

Focusedintntions · 03-09-2012, 08:01 AM

Yeah but I thought even being high flow they aren't supposed to trip the cel...not much on the forums about it. Emailed vishnu and waiting on a response. Hoping somebody else chimes in.

My135 · 03-09-2012, 08:24 AM

High flow cat does not equal to "no emission codes". Other people here already reported catted DP does throw "Emission error codes" sometimes and there is no guarrantte that it won't.

Buy a BMS DP fix which will solve this propblem for good.

Focusedintntions · 03-09-2012, 08:36 AM

BMS DP fix won't work on an n55

Guess i'll be ordering the CAN tool

Mike@N54Tuning.com · 03-09-2012, 10:23 AM

Its hit an miss with catted pipes. No codes on some cars, codes on others. Right now the CanTool is the only standalone CEL suppressor on the N55.

Mike

Focusedintntions · 03-09-2012, 10:27 AM

Thanks for the confirmation Mike.

Groundpilot · 03-09-2012, 11:47 AM

Quote:

Originally Posted by Mike@N54Tuning.com

Its hit an miss with catted pipes. No codes on some cars, codes on others. Right now the CanTool is the only standalone CEL suppressor on the N55.

Mike

Can tool will suppress CEL, but what about passing emission test?
I have read a few posts that some high flow catted DPs failed to pass.

Mike@N54Tuning.com · 03-09-2012, 12:00 PM

Quote:

Originally Posted by Groundpilot

Can tool will suppress CEL, but what about passing emission test?
I have read a few posts that some high flow catted DPs failed to pass.

A o2 simulator/downpipe fix can't help with the sniffer test. We have no data on that as the cars/pipes are too new and nobody needs an emissions test for several years.

Locally we need emissions after 7-years

Mike

Groundpilot · 03-09-2012, 02:28 PM

You guys are lucky. Here in NEW YORK State Emissions are required every year

Mike@N54Tuning.com · 03-09-2012, 02:43 PM

Quote:

Originally Posted by Groundpilot

You guys are lucky. Here in NEW YORK State Emissions are required every year

So you drive a brand new car off the lot and within a year you need to do a sniffer test?

That seems dumb

LOL (probably just a tax grab as I can't imagine any cars emission system failing that fast)

Mike

Focusedintntions · 03-09-2012, 03:47 PM

In va its every 2 years...and yeah Mike it's dumb

SANTI21 · 03-10-2012, 07:59 AM

Quote:

Originally Posted by Mike@N54Tuning.com

Its hit an miss with catted pipes. No codes on some cars, codes on others. Right now the CanTool is the only standalone CEL suppressor on the N55.

With the catted AR must be show check engine codes ?

siegester · 03-10-2012, 10:07 AM

Quote:

Originally Posted by SANTI21

With the catted AR must be show check engine codes ?

Has anyone tried an o2 defouler? You can make a straight version of these things yourself for like $7 with parts from most any autoparts store.

Here's an example of one that a company made for Hondas

The basic principle is that the hole is quite small, so only a small amount of the exhaust makes its way to the secondary o2 sensor. This essentially tricks the o2 sensor into thinking the exhaust is cleaner than it is.

I had one on my RSX for a while (until a sim was released that worked 100%), it did not prevent the CEL 100% of the time, but I only ever got a CEL once every 6 or 7k miles.
Given that you have hi-flow cats, it could make the CEL infrequent enough that you could pass emissions.

Groundpilot · 03-10-2012, 10:21 AM

This is very interesting.

Edogg218 · 03-10-2012, 08:46 PM

Quote:

Originally Posted by cjof2003

Has anyone tried an o2 defouler? You can make a straight version of these things yourself for like $7 with parts from most any autoparts store.

Here's an example of one that a company made for Hondas

The basic principle is that the hole is quite small, so only a small amount of the exhaust makes its way to the secondary o2 sensor. This essentially tricks the o2 sensor into thinking the exhaust is cleaner than it is.

I had one on my RSX for a while (until a sim was released that worked 100%), it did not prevent the CEL 100% of the time, but I only ever got a CEL once every 6 or 7k miles.
Given that you have hi-flow cats, it could make the CEL infrequent enough that you could pass emissions.

I had the same thing on my V70R and it worked for 5+ years!

03-09-2012, 06:24 AM	#1
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	Vishnu Catted DP = Check Engine??? Anybody else experience this? Mine came on last night driving home late. Was under the impression that having the catted version of the DP would eliminate the "service engine soon" light. __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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03-09-2012, 07:04 AM	#2
Rodzilla Lieutenant 31 Rep 409 Posts Drives: 2008 Montego Blue 135i Join Date: Dec 2010 Location: Miami, FL iTrader: (5) Garage List 2008 BMW 135i [0.00]	Maybe because they are Hi-flow? __________________ There are no impossible deeds, only incapable men. Eibach frontsway,BMS JB4,AFE Drop InBerk Street Axleback, H&R SPORT SPRINGS,Active Autowerke DP's ,Active Autowerke BOV,Active Autowerke FMIC , BMWPEDALS.COM, JB SPEED Black Grills,Alpina B3 TCU Flash
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03-09-2012, 08:01 AM	#3
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	Yeah but I thought even being high flow they aren't supposed to trip the cel...not much on the forums about it. Emailed vishnu and waiting on a response. Hoping somebody else chimes in. __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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03-09-2012, 08:24 AM	#4
My135 Lieutenant Colonel 85 Rep 1,609 Posts Drives: Join Date: Mar 2008 iTrader: (0)	High flow cat does not equal to "no emission codes". Other people here already reported catted DP does throw "Emission error codes" sometimes and there is no guarrantte that it won't. Buy a BMS DP fix which will solve this propblem for good. __________________ 7/08 135 Coupe, Crimson Red, 6 SP, Sport, Taupe Lette/Aluminum. Performance Mods: JB4 on Map 5, BMS DP Fix V3, Injen polished intake, AR Catless DP, Maddad resonated mid-pipes, aFe exhaust polished tips, ST Suspension Coil Over and Hotchkis front sway bar. Others: BMS OCC, BT Scanner, Mud Flap. Next Mods: AA Front Strut Brace.
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03-09-2012, 08:36 AM	#5
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	BMS DP fix won't work on an n55 Guess i'll be ordering the CAN tool __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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03-09-2012, 10:23 AM	#6
Mike@N54Tuning.com Joint Chiefs of Staff 4918 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	Its hit an miss with catted pipes. No codes on some cars, codes on others. Right now the CanTool is the only standalone CEL suppressor on the N55. Mike
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03-09-2012, 10:27 AM	#7
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	Thanks for the confirmation Mike. __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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03-09-2012, 02:28 PM	#10
Groundpilot Banned 476 Rep 1,711 Posts Drives: 135I DCT , e92 M3 DCT, Audi A6 Join Date: Mar 2010 Location: long island,ny iTrader: (0)	You guys are lucky. Here in NEW YORK State Emissions are required every year
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03-09-2012, 03:47 PM	#12
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	In va its every 2 years...and yeah Mike it's dumb __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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03-10-2012, 10:21 AM	#15
Groundpilot Banned 476 Rep 1,711 Posts Drives: 135I DCT , e92 M3 DCT, Audi A6 Join Date: Mar 2010 Location: long island,ny iTrader: (0)	This is very interesting.
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