Emissions

akuliest · 01-26-2012, 09:21 PM

hey guys,

Just wondering if any of you are running High flow catted downpipes and had any problems with emissions in VA. The reason i bought catted pipes was for emissions, but my friend told me he failed emissions in his A4...

Pat@sonictuning · 01-26-2012, 10:28 PM

Yes even with high flow cats you can still fail emissions. Even if you hav a tune that takes away the CEL you can still fail the readiness test.

scottp999 · 01-27-2012, 07:36 AM

Yes, as the cats age you can fail, mine will no longer pass without a mild sim setting (90% on procede where full catless requires a 50-60% setting).

Smkn335 · 01-27-2012, 08:28 AM

While there are many factors, particulates could still throw a code in the emissions reader. You'd almost be better swapping them out for the read since we can get it done every two years.

01-26-2012, 09:21 PM	#1
akuliest Private First Class 11 Rep 167 Posts Drives: 335i Black, Coral red interior Join Date: Apr 2011 Location: NOVA iTrader: (2)	Emissions hey guys, Just wondering if any of you are running High flow catted downpipes and had any problems with emissions in VA. The reason i bought catted pipes was for emissions, but my friend told me he failed emissions in his A4... __________________ Car for sale: Black saphire 335i coupe, coral red interior, BMW performance kidney grill, 6 speed manual and 35% all around tints
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01-26-2012, 10:28 PM	#2
Pat@sonictuning Major General 370 Rep 7,902 Posts Drives: Porsche 996 Turbo Join Date: Dec 2011 Location: NOVA iTrader: (145)	Yes even with high flow cats you can still fail emissions. Even if you hav a tune that takes away the CEL you can still fail the readiness test.
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01-27-2012, 07:36 AM	#3
scottp999 Brigadier General 133 Rep 4,764 Posts Drives: 4runner SR5 Join Date: Mar 2007 Location: MD iTrader: (2) Garage List 2007 BMW 335 [9.00]	Yes, as the cats age you can fail, mine will no longer pass without a mild sim setting (90% on procede where full catless requires a 50-60% setting).
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01-27-2012, 08:28 AM	#4
Smkn335 New Member 0 Rep 5 Posts Drives: 2008 335xi Join Date: Jan 2012 Location: NOVA iTrader: (0)	While there are many factors, particulates could still throw a code in the emissions reader. You'd almost be better swapping them out for the read since we can get it done every two years.
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