Help passing emissions?

Question

My 93 Ford Mustang GT has no cats. I have a few bolt on mods and a full exhaust system. Is it possible for me to pass emissions without the cats? Is there anything I can do so that when they plug the sniffer into it it burns a little cleaner. If it helps, everything in the fuel and ignition system is new and was replaced about 2 months ago. Do any of those fuel additives that say you will pass actually work? I've never been a believer in any of that stuff

Anonymous · Accepted Answer

You Probably Wont Pass Without The Cats.

Hank Scorpio · Answer

With a sniffer test probably not.  That's why people use "test" pipes...so they can just swap their cat back in for the test and swap it back out when it's done.  It's going to be a pain to do it now, maybe you should try the additives (I believe they use toulene, could be wrong) but there's no guarantee it will work.  Basically, they just make the combustion cycle more complete.

If it doesn't work then you're going to have to go the test pipe route (ie weld flanges to a cat(s) inlet and outlet and flanges to a "test/cutout" portion of your exhaust.

military supporter · Answer

Your 93 Mustang should not need a emissions test. I believe that is only for 1996 and later vehicles with OBD-ll engine controls(at least that is the law in Vermont).

Chris · Answer

You can't expect it to pass without a cat. Its like taking the filter off a cigarette then smoking it. Very harmful!

Anonymous · Answer

If you have no cats, you will not pass emissions.  Period and sorry.

Don S · Answer

No cats no pass.

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Help passing emissions?

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