egr helpp!!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

hamsterb0i · 09-01-2010, 09:27 PM

if you remove the egr will it pass smog?

chiboy002 · 09-01-2010, 09:53 PM

im almost 100% positive it wont. Exhaust Gas Recirculation, its designed to burn left over fuels that didn't burn during the combustion process. And im sure they check for those during smog tests

94spitfire91 · 09-01-2010, 09:58 PM

Me and ^ this guy dont have smog tests tho Ive also heard they dont pass after you remove it are you talking about just plugging up the holes? why do you want to?

S13Disco · 09-01-2010, 10:32 PM

It will not pass smog....it will fail the visual and the sniffer

mxexux · 09-01-2010, 10:39 PM

Quote:

Originally Posted by chiboy002

im almost 100% positive it wont. Exhaust Gas Recirculation, its designed to burn left over fuels that didn't burn during the combustion process. And im sure they check for those during smog tests

EGR is designed to recirculate exhaust into the combustion chamber in order to bring combustion temps down preventing NOx gasses from forming. Without EGR your car will most definitely fail for high NOx.

P.S.--A couple months ago California decided to lower the allowable limits for emissions on my car at least which is a 1995 S14. I'm actually having trouble passing smog my self under the new limits. My car is running very well, but smog is just barely failing. I'm having to get a new cat...

hamsterb0i · 09-01-2010, 10:53 PM

dam... cuz i havent done somg yet and my check engine light is on.... it says its the egr... but i dont wanna spend the 150 bucks to fix it... so i figure i remove it...but now i guess i have to fix it... thanks for the help guys...

markapple0507 · 09-01-2010, 11:20 PM

search!!! lol before you get flamed and this gets locked up. not trying to be a dick but its the truth

oh and to answer this...

Quote:

Originally Posted by hamsterb0i

if you remove the egr will it pass smog?

simply no

projectRDM · 09-02-2010, 10:12 AM

Not exactly. It won't pass visual, but it will pass the sniffer test as long as the catalytic converter is functioning correctly, if your state only does a sniffer. Some states do both, GA luckily does not. My daily driven LS400 doesn't have the EGR system at all, neither did my old S14. Both pass fine. It also helps to have the intake manifold hot tanked so that it's clean inside and won't continually drip off sludge and carbon deposits into the engine, but that's not required.

chiboy002 · 09-02-2010, 11:05 PM

Quote:

Originally Posted by 94spitfire91

Me and ^ this guy dont have smog tests tho Ive also heard they dont pass after you remove it are you talking about just plugging up the holes? why do you want to?

representttttttttttttttttt

Quote:

Originally Posted by mxexux

EGR is designed to recirculate exhaust into the combustion chamber in order to bring combustion temps down preventing NOx gasses from forming. Without EGR your car will most definitely fail for high NOx.

P.S.--A couple months ago California decided to lower the allowable limits for emissions on my car at least which is a 1995 S14. I'm actually having trouble passing smog my self under the new limits. My car is running very well, but smog is just barely failing. I'm having to get a new cat...

Damn that sucks man. Also, yeah i forgot it was about NOx. I only looked it up when i got my headers, im still waiting to man up and make a block off plate.

09-01-2010, 09:27 PM	#1
hamsterb0i Leaky Injector Join Date: Jul 2007 Location: garden grove Posts: 80 Trader Rating: (2) Feedback Score: 2 reviews	egr helpp!!! if you remove the egr will it pass smog?

09-01-2010, 09:53 PM	#2
chiboy002 Post Whore! Join Date: Mar 2010 Location: ◙ Posts: 4,435 Trader Rating: (21) Feedback Score: 21 reviews	im almost 100% positive it wont. Exhaust Gas Recirculation, its designed to burn left over fuels that didn't burn during the combustion process. And im sure they check for those during smog tests __________________ street dancer. GLEAM

09-02-2010, 10:12 AM	#8
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Not exactly. It won't pass visual, but it will pass the sniffer test as long as the catalytic converter is functioning correctly, if your state only does a sniffer. Some states do both, GA luckily does not. My daily driven LS400 doesn't have the EGR system at all, neither did my old S14. Both pass fine. It also helps to have the intake manifold hot tanked so that it's clean inside and won't continually drip off sludge and carbon deposits into the engine, but that's not required. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

09-01-2010, 09:58 PM	#3
94spitfire91 Zilvia Junkie Join Date: Jun 2010 Location: IL Posts: 520 Trader Rating: (15) Feedback Score: 15 reviews	Me and ^ this guy dont have smog tests tho Ive also heard they dont pass after you remove it are you talking about just plugging up the holes? why do you want to?

09-01-2010, 10:32 PM	#4
S13Disco Zilvia Member Join Date: Aug 2005 Location: RIALTO, CA Posts: 177 Trader Rating: (0) Feedback Score: 0 reviews	It will not pass smog....it will fail the visual and the sniffer

09-01-2010, 10:53 PM	#6
hamsterb0i Leaky Injector Join Date: Jul 2007 Location: garden grove Posts: 80 Trader Rating: (2) Feedback Score: 2 reviews	dam... cuz i havent done somg yet and my check engine light is on.... it says its the egr... but i dont wanna spend the 150 bucks to fix it... so i figure i remove it...but now i guess i have to fix it... thanks for the help guys...