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Rotten Egg smell exhaust
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Comments
it's some of the car makers, not the gas producers, who haven't got their act together on H2S.
I discussed it with Nissan's Corporate office for a while and they refused assistance. They said that I must have bought gas at some point with a really high sulfur content and now I have to wait for it to burn off. They could give no estimate of time for when this might happen. They passed along the same pamplet to me that they give everyone that 'defines sulfur' and explains 'rotten egg odor', etc.
This is 99% a Nissan problem and if you ever smell this at a stoplight, look around and I guarantee there will be a Nissan or Infiniti in sight.
There are no more suggestions worth trying. I tried everything and nothing helped! I will NEVER buy a Nissan automobile again and neither will anyone I know.
if the module dies in the flash, it was probably really No Freaking Good to begin with... but it is a nasty way to spend 600 or more dollars for a minute's worth of work.
How can it help with stinky smell?
Who can do it?
Thanks
the stink from H2S gas in the exhaust is caused by dumping of excess fuel into the cylinders... it is carried out as unburned hydrocarbons, along with the additives and problems, and those react rather violently with oxygen (mostly) in the catalytic converter. sulfur from gasoline is a problem in this regard, and it catalyzes with hydrogen to make hydrogen sulfide gas. this is a pollutant, in water it's called sulfurous acid H2SO3, and emission is limited by federal law. the tailpipe sniffer should also be seeing excess unburned hydrocarbons, low CO2, and probably higher CO than permitted. eventually this excess hydrocarbon in the engine exhaust will burn up the catalytic converter... the way they make 'em nowadays, the cat "sponge" of ceramic will probably shatter from the excess heat and block the exhaust.
none of this is good. it is incumbent on franchised dealers to honor their warranties and the 60 or 80 thousand mile EPA warranty and correct these problems. dealers will piss and moan about and try to blame things on sulfur in gasoline... and dangit, that's nonsense, it's been worse in the past, and the system is designed to deal with it, or the car would not be certified for sale in the US.
if they can't get that together, and frankly all they need to know came in the factory base tuneup training if they bothered to send anybody to it, you may need the state pollution board and/or your lawyer to get involved. they need to sniff the tailpipe, put the car on the box, and check the flash revision on the car, and see if there are updates from the automaker's national service webserver. if so, flash it in.
if the engine computer is sick, flashing it could kill it. so then they replace a computer under warranty, ain't nothing evil about that, either.
this is assuming that everything works as the computer tells it to do, which puts the onus for the problem on the computer telling it wrong. any way you put raw gas into the exhaust stream... stuck injector, bad plug, wire, coil, or output transistor from the computer preventing cylinders from firing... also can cause the same result. so that's why you need to wire the car up all the way, run it per the EPA long test, compare the results to the handy-dandy tree of findings in the service manual, and thus determine all the likely faults and fix 'em in order until the problem is gone.
what has been happening is... it runs, they got things to do, they didn't look at your problem as the factory service books said to, and you are driving an illegal car. they need to deal with it according to the books. maybe they need to finally sit down and read those books, but if you can't get their attention, get an advocate (aka lawyer or pollution bureaucrat) to remind them they are supposed to do more than count the money at the end of the day over there.
if I seem a little torqued, well, I don't like sitting behind those stinkers, illegally firing up my asthma. I want them all fixed or replaced, now. barring that, I want the guys who DON'T fix them in the can, and the Federal pollution laws allow for that.
There seem to be a stinking problem with new (2003) Toyota Corolla and other ULEV Toyotas.
My Cololla stinks only occasionally (heavy accleration) so I am not sure how aggresively to pursue this. The Toyota officially denies the problem and steers people to low sulfur gas (some premiums).
in the twin cities metro area, it's "blue planet" gas at holiday stationstores from flint hills.
my understanding is the chevron blends in most of california are sulfur-free across all grades, but see a dealer to be sure or check their website.
there will be other regional refineries make big local noise when they get their tool-ups completed, so watch a newspaper near you...
meanwhile, it might be worth dropping an email to NHTSA. yes, put in a complaint on your stinker. they get enough, they'll put a little pressure on friends carmaker that you and I and our lawyers can't www.nhtsa.gov