Emissions Results Question!

[Gamebay11]

Would I fail emissions if I have headers and a cat back system on, but still having the cat on there?

[Xidion]

most likely not all depends on the laws. If you go to get a test just put the stock muff on.

[92CamaroRS]

depends on if you have a visual check or if they do the sniffer test. if they do a visual they will most likly notice the headers and tell you to change it and come back. happens to alot of the guys on the camaro boards i hang out on.

[Colin]

Headers may increase NOX reading slightly , but not enough to fail the test . Cat back exhaust will not effect emissions . How ever a visual check with headers might be a problem depending on the laws .

[RAZING]

Why would headers on a grand am fail an emissions test? I've never heard that before. My car passed inspection with an SES emissions code caused by a supercharger, so I don't see why a normally functioning car with headers can't pass.

[Colin]

Originally posted by RAZING
Why would headers on a grand am fail an emissions test ? Some states have a visual inspection as part of the test . If anything has been changed from stock it will fail , unless the part has CARB approval . Some mods can actually improve emissions , but you can't legally use them unless they have been tested to verify this . Vehicles with SES lights on can't be tested in some areas as well , i guess you lucked out there . :)

[Pte Socks]

hehe well dont I love alberta then.. Heheh no emmission testing here.

[Colin]

Here in Toronto we have to get tested every two years . Or when you want to change ownership . So far there is no visual test , just a sniff test . Personally i think it's just a money grab , especially on OBD2 vehicles . :roll2:

[Themeneea]

its a money grab for sure. there talking about getting rid of it

[litdevil316]

i say they should get rid of it. why fail a car if it still running clean jus bc of a damn header is on it? i can understand the sniffer. if it not running good and putting out too much gas, ok then, fail it.

[BBT]

Yeah, I don't understand the visual test either. If the car passes, then it passes. Same with a fail. It is emissions they're supposedly concerned with isn't it? And if they are worried about parts/mods that may not last and continue doing their job, well, won't that get caught with a subsequent test? The car fails, the owner has to make a fix in order to pass, and everything is good all over again.

Sometimes, some rules are just stupid.

[VanishingImage]

here in Ohio,on any car newer then i think 94,they plug into your computer to check for any errors,they don't place the thing over your exhaust on any newer cars,and I don't belive they do a visual test.IMO,any emissions should be just that,just check for fumes,not what someone has moded or what,thats not their place,if a car passes it passes,if it fails then its up to the owner to get it fixed within the time they give and test it again.

[Matt95GT]

Originally posted by VanishingImage
here in Ohio,on any car newer then i think 94,they plug into your computer to check for any errors...

Just to clarify, it's 1996. (First year 100% OBDII)

PA emissions test is...
96+ = code scan
95-older = visual inspection only

[litdevil316]

anyone know of MD's laws? want to try to switch my car from texas tags to maryland

[Pte Socks]

wow, didnt I speak too soon, here I am in ontario and bam, fail 2 emissions test. Im so screwed and I cant figure out why im doing so bad.