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Old 12-12-2007, 08:35 PM   #1
WRX-PLOD
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Default Passing AZ Emissions.....

So, if we have no cats, just a pipe from the turbo back.....will the car pass?
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Old 12-12-2007, 08:46 PM   #2
CypherAZ
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Cobb Accessport 4TW.
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Old 12-12-2007, 08:57 PM   #3
AaronB
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From the horse's mouth... Red for things that will likely affect most people here.

http://www.azdeq.gov/environ/air/vei/tech.html

Quote:
Originally Posted by AZ DEQ
Test Types
The model year and engine type of your vehicle determines which type of test your vehicle will receive. Brief descriptions of the tests follow.

IM 147: This is the enhanced test used for most 1981 through 1995 gasoline-powered vehicles in the metro Phoenix inspection program. In this test, the vehicle is driven on rollers (called a dynamometer) at varying speeds to simulate urban driving. The exhaust is continuously measured and the results are shown in grams per mile.


Steady State Loaded/Idle: This test is used for most 1967 through 1995 vehicles in Tucson and 1967 through 1980 models in Phoenix. The vehicle is tested at idle and (depending on vehicle class) at approximately 25 to 30 miles per hour. The results are shown in percent or parts per million.


On Board Diagnostics: The newest test to be used in Arizona is the on-board diagnostic test. Used on 1996 and newer light duty vehicles only, engine operating data is accessed by connecting directly to a computer in the vehicle that continuously monitors engine emission control systems operation. The on-board diagnostic test can identify problems before they lead to engine damage and emissions system failure.


Diesel: Diesel vehicles are tested for opacity (smoke density). The test uses an opacity meter, which is an instrument that measures the percentage of opacity of the exhaust. Light duty diesel vehicles and all Tucson area diesel vehicles are tested under load on a dynamometer. In metro Phoenix, heavy duty diesel vehicles are tested using a procedure called "snap acceleration" or "snap idle."


Tampering: In addition to one of the above tests, a vehicle may undergo a visual inspection to determine the presence of certain emission control components as installed by the manufacturer. Inspection includes catalytic converter, operational air pump, positive crankcase ventilation system and evaporative control system. These inspections coupled with the evaporative system integrity (pressure) test constitute the tampering inspection.
So they MAY do a visual test to any car, and if they do you will likely fail. Whether they will or not is a different story...
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Old 12-13-2007, 10:28 AM   #4
joebud
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If they check readiness check through OBD2 with the proper tune and no sniff test, you may pass.

If they do a sniff test you will not pass.
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Old 12-13-2007, 10:33 AM   #5
racingfish
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from what i hear from all of my customers who run catless (that had to get smogged), they all passed. tampering with emissions equiptment is a federal offense, i dont know why people would do it.

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Old 12-13-2007, 12:25 PM   #6
dozer54321
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^thats what she said
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Old 12-13-2007, 12:44 PM   #7
racingfish
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who said?
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Old 12-13-2007, 01:21 PM   #8
dozer54321
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yo momma
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Old 12-13-2007, 01:37 PM   #9
thegreg
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you should pass if its obdII and has no CEL (check engine light) & your gas cap seals correctyl.....unless its some jerk who looks under and sees that you have no cats

In my experience I have been able to clear my own codes on a obdII car with no upstream o2 sensor aka a/f ratio sensor. Run through emissions and passed. No CEL had set, yet, but i still had a fault, just hadn't gone through a complete drive cycle yet.

my .02
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Old 12-13-2007, 07:41 PM   #10
subykid
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u need no CEL, all your monitors have to have run, which means u cant just unplug the battery right before the test and clear the code cuz it will fail the test, and ur 5 gas and gas cap must pass. i read up cuz i had to get smogged here and im from vegas which doesnt care about smog.
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