Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
If I remove the insides of my Catalytic Converter will I fail my emissions test?
All the bits in side my catalytic convert are rattling around. Has any one evr taken these out and passed an emission test afterwards?
I know this is probably in contravention of traffic regulation 4 chapter 17.8, sub paragraph dooda. I just want to know if any one has tried it.
A few extra bits of info:
The car is a diesel.
It is in the UK (England)
It was built in 2003.
It has Eghaust Gas recirculation.
I have just spoke to a professional mechanic, and he assures me that removing the insides of the cat will not make the car fail its emissions test. With a diesel, it tests for smoke which apparently is unaffected by the lack of a cat.
8 Answers
- catmandewLv 71 decade agoFavorite Answer
As is the case with most automotive questions, the vehicle you have may make a difference. And in the case of emissions questions, where you live as well (many smog regulations are specific to a metro area or county).
Most pre-OBD-II cars are tested with a sniffer. You might conceivably have a chance of passing if that's the case. I once had a 1967 vehicle that was able to meet specs for 1976 vehicles on a sniffer test at school.
But most OBD-II cars (the vast majority currently on the road) in most jurisdictions, will be subject to a "plug and play" test, and it's highly unlikely you could pass that. The lack of change in Oxygen levels between the pre- and post-Cat O2 sensors will give you away.
That's the best answer you're gonna get, given the limited amount of information you've presented.
Source(s): ASE Certified Tech - Country BoyLv 71 decade ago
You will fail the emissions part of your inspection. There are several sites on the net where you can buy a *direct replacement converter a heck of a lot less expensive than a dealer or muffler shop. Any new car dealer will install it for you. Check out the following sites: partstrain.com, autopartsgiant.com and autoparttswarehouse.com. See if you can find a Walker brand direct fit converter.
Source(s): Alignment, suspension and brake shop. - oklatomLv 71 decade ago
Probably you will fail. If your vehicle is newer, and has an O² sensor fore and aft of the catalytic converter, your check engine light will be on, an automatic fail. If not, the sniffer they place in the pipe to read levels will read too high, and you'll fail.
- MattLv 71 decade ago
The catalytic converter takes the residual hydrocarbons in the exhaust from the engine and destroys them, making the tailpipe emissions cleaner. Since your car was originally designed with one, you are very likely to fail without it.
- How do you think about the answers? You can sign in to vote the answer.
- FrankieLv 71 decade ago
YES, you will fail emissions.
It is illegal to modify the emissions sytem. Doing so is a violation of Federal Law.
Source(s): Just my opinion - Anonymous1 decade ago
you will fail miserably,and more than likely will fail right now if it has a problem.
