LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Able to pass the sniffer with racing longtubes

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Old May 25, 2006 | 05:27 PM
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Default Able to pass the sniffer with racing longtubes

is it possible to pass the sniffer when i go to emissions, i have the racing long tubes, they wont know that it has air or egr because my diagram is blocked by the ram air...it has cats and all, just curious if people have passed before or should i be like yes i need this to pass *slip a 20* ha
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Old May 25, 2006 | 07:51 PM
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Originally Posted by Cchris1109
is it possible to pass the sniffer when i go to emissions, i have the racing long tubes, they wont know that it has air or egr because my diagram is blocked by the ram air...it has cats and all, just curious if people have passed before or should i be like yes i need this to pass *slip a 20* ha
Seems like you should be able to pass... whats the tune like?

I'm sure AZ emissions are differant from IL though
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Old May 25, 2006 | 09:27 PM
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Originally Posted by Cchris1109
is it possible to pass the sniffer when i go to emissions, i have the racing long tubes, they wont know that it has air or egr because my diagram is blocked by the ram air...it has cats and all, just curious if people have passed before or should i be like yes i need this to pass *slip a 20* ha
I don't follow what you say here. It's going to be obvious that you're missing the AIR/EGR Equipment when the tech pops the hood. Not to mention the relocation of factory cats causing an instant failure if they notice.

But the roller........if you have cats on the car, you shouldn't have any issues passing the sniffer.

I used to live in Scottsdale, AZ emissions were almost as bad as CA emissions to get through.
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Old May 25, 2006 | 09:43 PM
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tune is madz28 tune, its not that obvious that its missing AIR/EGR if the tech doesnt see the diagram
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Old May 25, 2006 | 10:17 PM
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They pop the hood in AZ
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Old May 29, 2006 | 10:53 AM
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That sucks they pop the hood. Do they actually know what to look for?

I passed the sniffer with the Z before I had the CC306 go in with FLP longtubes with the cats on.
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Old May 29, 2006 | 11:09 AM
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in AZ it's like putting your car on a dyno...I took an older car, with no 02 sensor, missing muffler and running like poop and it passed big time. You should have no worries.
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Old May 30, 2006 | 09:31 AM
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in AZ they just do the tail pipe test and make sure your fuel system return works .. easy crap

my brick passed with a giant IC in there, cone and big exhaust (EGR still hooked up tho). and about 30% larger injectors with a stock ECU

as long as the tune is setup right it will pass

Last edited by thelostartof; May 30, 2006 at 02:04 PM.
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Old May 30, 2006 | 10:09 AM
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I passed NJ emissions with LTs and cats... my NOX reading was ONE point away from failing. I was surprised myself. Not sure how bad AZ emissions are, good luck.

-J
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Old Jun 4, 2006 | 05:54 PM
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NJ should be more strict because of the pollution there, i put em on and im going to try and fab an air tube so i can pass the visual.

Thanks, and the car runs great with em on!
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Old Jun 4, 2006 | 07:47 PM
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I don't think you will pass with LTs if there is a visual due to cat relocation.
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