Looking for advice on passing sniff test

Stang_ROTY · 05-26-2006, 01:25 PM

I have to get my bi-yearly inspection tomorrow. Any advice for passing the dyno-based emissions test? I've heard rumors that products such as dry gas can help...any truth to that? I'm not using any smog equipment or cats btw.

Fat0eknee · 05-26-2006, 03:26 PM

whats a bi-yearly inspection and do they really stick your car on a dyno?

Maroon 5.0 LX · 05-27-2006, 06:36 AM

We have the same tests here in MD, on a dyno.

I usually make sure the air cleaner is good and do an oil change.

I just had my van done Thursday. Passed OK.
I hate those danged inspections, another way for the state to get more money. Cost $14. Have to do it every 2 years.

Fat0eknee · 05-27-2006, 09:15 AM

so you cant have over a certain amount of horsepower or what?

transporter · 05-27-2006, 08:53 PM

You should make sure your car is tuned. Not sure what year your car is but here if its OBD II they just plug into the computer and check for codes. If earlier they run it on the dyno.

Lethal5Oh · 05-27-2006, 10:07 PM

Heres a few things that got me through. Run high octane gas like 93, a can or two of HEAT helps, make sure your car is HOT, drive it for atleast 30 minutes before the test and dont shut it off before the test if possible. if your not running cats you may be in trouble anyway, were i live they check for cats before the test. Good luck.

~The Jester~ · 05-28-2006, 07:44 AM

My gawd, I'm glad I live in Ohio. We're a "run what ya brung" state. We don't have ANY of that. On the downside, there are more than one REAL junkyard candidates still on the road.

That REALLY sucks, I feel bad for you guys! Seriously!

Maroon 5.0 LX · 05-29-2006, 06:13 AM

Quote:

Originally Posted by Fat0eknee

so you cant have over a certain amount of horsepower or what?

The dyno is not to check horespower, it just simulates the car running on the road.

As mentioned above, later cars don't need to be run on the dyno, they just plug into the computer to get the reading.

Gearhead999 · 05-29-2006, 08:22 AM

Heck, I'd find a reason to move to a friendlier state.

Stang_ROTY · 05-30-2006, 08:47 AM

Yes it totally sucks. This frustration, along with the prices of insurance and gas make me really think about just racing the car. I'd like to be able to enjoy it on the street but it's becoming harder and harder.

It's a 93 so it has to go on the damn dyno....so ridiculous. They sim the driving conditions, and it failed on the deceleration. No cats and a pretty lumpy cam - Ford Racing "Z" equivalent. Needless to say she failed...now I have 60 days to make a decision and potentially take her off the road and trailor it to the track. I need to move...

transporter · 05-30-2006, 12:55 PM

I use to have problems with my 92 camaro with emmision testing. One thing I found was to make an exhaust leak were my cat bolted to the y-pipe. Seemed to get me through. I also tried this stuff called "guarenteed to pass". It did lower my emmsions, not enough, but got me closer with the exhaust leak I managed to make it. This is the last year for emmsion testing here. Thank god. Good luck.

Lethal5Oh · 05-31-2006, 12:36 PM

Im telling you, 2 or 3 bottles of heat and youll pass. Guy at work had a 93 v6 camaro that was blowing smoke, 3 bottles of heat and it lowered his emission like 1 point, way below the max allowable.

Dark Knight · 05-31-2006, 01:10 PM

Pull an injector wire off. You'll be running plain air through one cylinder so the PPM's will drop a bunch. Denatured alcohol works too

How far off were you?

BTW, higher octane burns slower, so you'll have more unburned gas in the exhaust.

05-26-2006, 01:25 PM	#1
Stang_ROTY Registered Member Join Date: Feb 2001 Location: Berkshire County - Massachusetts Posts: 735	Looking for advice on passing sniff test I have to get my bi-yearly inspection tomorrow. Any advice for passing the dyno-based emissions test? I've heard rumors that products such as dry gas can help...any truth to that? I'm not using any smog equipment or cats btw. __________________ Red 1993 GT Street Machine Best E.T. - 12.41/Best MPH = 108 Engine is a 1969 351 block w/393 stroker kit. Dynamic Roller Myte C4, 8 pt cage. Edlebrock Performer heads and Victor Jr. EFI, FRPP 30lb injectors & Cartech fuel system. MSD ignition. Sothside Machine bars & Sub-frames, adj. upper's, 3.73's, Koni rear shocks, much more

05-26-2006, 03:26 PM	#2
Fat0eknee I'm slow ...I know. Join Date: Dec 2003 Location: houston Posts: 518	Re: Looking for advice on passing sniff test whats a bi-yearly inspection and do they really stick your car on a dyno? __________________ When you do things right, people won't be sure you've done anything at all...

05-27-2006, 06:36 AM	#3
Maroon 5.0 LX Registered Member Join Date: Mar 2001 Location: Southern Maryland Posts: 471	Re: Looking for advice on passing sniff test We have the same tests here in MD, on a dyno. I usually make sure the air cleaner is good and do an oil change. I just had my van done Thursday. Passed OK. I hate those danged inspections, another way for the state to get more money. Cost $14. Have to do it every 2 years. __________________ '89 LX 5.0 - 5 speed. Original Owner '94 E-150 4.9 Hi-Top Conversion Van '06 Mustang V-6, 5 speed

05-27-2006, 09:15 AM	#4
Fat0eknee I'm slow ...I know. Join Date: Dec 2003 Location: houston Posts: 518	Re: Looking for advice on passing sniff test so you cant have over a certain amount of horsepower or what? __________________ When you do things right, people won't be sure you've done anything at all...

05-27-2006, 08:53 PM	#5
transporter Registered Member Join Date: Apr 2006 Location: Jeffersonville, IN (Louisville, KY) Posts: 17	Re: Looking for advice on passing sniff test You should make sure your car is tuned. Not sure what year your car is but here if its OBD II they just plug into the computer and check for codes. If earlier they run it on the dyno.

05-27-2006, 10:07 PM	#6
Lethal5Oh Registered Member Join Date: Jun 2002 Location: Portage Posts: 239	Re: Looking for advice on passing sniff test Heres a few things that got me through. Run high octane gas like 93, a can or two of HEAT helps, make sure your car is HOT, drive it for atleast 30 minutes before the test and dont shut it off before the test if possible. if your not running cats you may be in trouble anyway, were i live they check for cats before the test. Good luck. __________________ '95 GT convert. K&N, C&L mass air meter, Performance distributors sreamin demon coil, dyna mod, live wires, king cobra clutch, flowmaster american thunder exhaust, UPR billet adjustable shift handle, Crane Cams Fireball HI-6 box,underdrive pullies, 255lph fuel pump, UPr short throw shifter, caster camber plates, 03 cobra lower A arms, bullit suspension, cobra front brakes

05-28-2006, 07:44 AM	#7
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: Looking for advice on passing sniff test My gawd, I'm glad I live in Ohio. We're a "run what ya brung" state. We don't have ANY of that. On the downside, there are more than one REAL junkyard candidates still on the road. That REALLY sucks, I feel bad for you guys! Seriously! __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

05-29-2006, 08:22 AM	#9
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: Looking for advice on passing sniff test Heck, I'd find a reason to move to a friendlier state. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

05-30-2006, 08:47 AM	#10
Stang_ROTY Registered Member Join Date: Feb 2001 Location: Berkshire County - Massachusetts Posts: 735	Re: Looking for advice on passing sniff test Yes it totally sucks. This frustration, along with the prices of insurance and gas make me really think about just racing the car. I'd like to be able to enjoy it on the street but it's becoming harder and harder. It's a 93 so it has to go on the damn dyno....so ridiculous. They sim the driving conditions, and it failed on the deceleration. No cats and a pretty lumpy cam - Ford Racing "Z" equivalent. Needless to say she failed...now I have 60 days to make a decision and potentially take her off the road and trailor it to the track. I need to move... __________________ Red 1993 GT Street Machine Best E.T. - 12.41/Best MPH = 108 Engine is a 1969 351 block w/393 stroker kit. Dynamic Roller Myte C4, 8 pt cage. Edlebrock Performer heads and Victor Jr. EFI, FRPP 30lb injectors & Cartech fuel system. MSD ignition. Sothside Machine bars & Sub-frames, adj. upper's, 3.73's, Koni rear shocks, much more

05-30-2006, 12:55 PM	#11
transporter Registered Member Join Date: Apr 2006 Location: Jeffersonville, IN (Louisville, KY) Posts: 17	Re: Looking for advice on passing sniff test I use to have problems with my 92 camaro with emmision testing. One thing I found was to make an exhaust leak were my cat bolted to the y-pipe. Seemed to get me through. I also tried this stuff called "guarenteed to pass". It did lower my emmsions, not enough, but got me closer with the exhaust leak I managed to make it. This is the last year for emmsion testing here. Thank god. Good luck.

05-31-2006, 12:36 PM	#12
Lethal5Oh Registered Member Join Date: Jun 2002 Location: Portage Posts: 239	Re: Looking for advice on passing sniff test Im telling you, 2 or 3 bottles of heat and youll pass. Guy at work had a 93 v6 camaro that was blowing smoke, 3 bottles of heat and it lowered his emission like 1 point, way below the max allowable. __________________ '95 GT convert. K&N, C&L mass air meter, Performance distributors sreamin demon coil, dyna mod, live wires, king cobra clutch, flowmaster american thunder exhaust, UPR billet adjustable shift handle, Crane Cams Fireball HI-6 box,underdrive pullies, 255lph fuel pump, UPr short throw shifter, caster camber plates, 03 cobra lower A arms, bullit suspension, cobra front brakes

05-31-2006, 01:10 PM	#13
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	Re: Looking for advice on passing sniff test Pull an injector wire off. You'll be running plain air through one cylinder so the PPM's will drop a bunch. Denatured alcohol works too How far off were you? BTW, higher octane burns slower, so you'll have more unburned gas in the exhaust. __________________ 84 convt,roller 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.58@102.84 and a '68 stang .. project 8 sec street car... 557 big block + N20 :-) http://members.cox.net/darkknight302/68nwrear.jpg

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