excessive sulfur odor on 2007 model year Yaris

[pennyracer]

i had mine replaced 6 months ago left the dealed got it on the fhy wide open still smells like shit and toyota says there is no problem this has had the bad smell from day one mine is a 08 model year but built in 07 im lost on what to do next ? from what i have heard is the smell comes from the cat when its working not when its not working they say that the car is dumping to much fuel in the motor i need the ecu reflashed with some changes but toyota does not have a program for the 07 model year anyone have the true info on this matter

[detroiter]

Don't feel bad. Mine does the same thing when I nail the gas at wide open. Mine is an 08 LB that's white colored too :)

The dealer pretty much told me the same as they did to you, that it's just all the extra fuel being dumped in running rich, then burning off. Told me that it's a "Toyota smell".
I guess I can see where there coming from, kind of like how Fords at WOT smells like eggs and fruit punch lol.

[silver_echo]

what i noticed when i had my 01 on the dyno is that the factory fuel map makes it too rich at WOT... i get the same smell as well...

[pennyracer]

thats wild the same problem did you get your cat replaced detroiter
? my concern about this one am i getting worse gas millage then normall ? if so its costing me extra money witch would be b.s. in my book 2nd thing is this going to lead to major build up on the valves and plugs down the road ? yes toyota was zero help on this deal wish i could get some answers someware

[detroiter]

Nope they didn't replace anything. They tried selling me off that nothing was wrong, that the strong smell when you hot dog the accelerator is just a "toyota thing". Smells like a sulfur or burning stench. They were not much help at all so I might try and go to a seperate Toyota dealer and see what they have to say.

[AlexNet0]

I get the smell if I hold it through more than 2 gears, etc 1-WOT 2-WOT, start 3rd at WOT and I get the smell.

I assume this is becuase the cat heats up

[Jerkratt]

on my 08 i have the nitto mid-pipe.. and i get the HOT SS smell.. lol ALOT better then the sulfer smell... when i HAD my 07 i got it replaced and the smell was still there... but not nearly as bad/much

[pennyracer]

i just had a idea i wonder if i buy a older ecu than mine if this would correct the problem since it seems to be dumping to much fuel and i hear there is no re flash for the ecu on the yaris to this day anyone have some good input on this idea ?

[Jerkratt]

dont think so.. things wont line up right with the connectors u would have to rewire it

[helphelp911]

Does this TSB apply to canada too??

[bobalou1]

I have read the TB on sulfur smell in 2006/07 HB. I have a 2008 that exhibits the same odor after deexceleration from highway speeds. At first I thought it was from a vehicle in front of me. Yesterday I was traveling 75 mph passing a truck and let off the gas and noticed the odor. The AC outside vent was closed, The windows were rolled up and there were no vehicles in front of me. There was no human injected fumes either. Is anyone experiencing this and is there any ideas on how the fumes are getting a closed vehicle?

[Hershey]

at times we can smell the plastic manifold coming up from under the hood into the fresh air intake and through the vents of the cabin while climbing steep hills under a strain . Kind of smells like oil that gets on engine from forgetting to put oil cap back on or spilling of oil onto motor during oil change . When 1st bought a YARIS this happened when climbing a very steep hill . So pulled off to side of road thinking I had left oil cap off ( or loose ) after doing a oil change . Lifted the hood to find not to be the case , so followed the odor to the plastic manifold ( TUCAN SAM ) . Seems to be more present ( stronger ) when the car is newer .

[bobalou1]

I just got back from the local dealer. I Took my car in and explained the problem to the service advisor. He said they would have to duplicate the problem of sulfur odor. I printed out a copy to the TB, as recommended by other Yarisworld
responders. He read the TB and said when do you want to make an appointment to get it taken care of. Tomorrow 08:00 and it would take about an hour if they have the parts in stock. This only goes to prove that you need to take a copy of the TB with you. Will keep you informed.

[Twistoffate0817]

My 09 hatch stinks whenever i turn the heat on! Smells horrible..is this the problem?

[bobalou1]

The smell in my case has nothing to do with the heater. During deexcelleration the air in the car is filled with the smell of rotten eggs. It has to do with the Cat Converter.

[TheSilkySmooth]

Originally Posted by bobalou1

The smell in my case has nothing to do with the heater. During deexcelleration the air in the car is filled with the smell of rotten eggs. It has to do with the Cat Converter.

Hi- did you get it fixed yet ? and if you did have U noticed any improvement to power, sound or gas mileage? I guess it's the whole welded exhaust from the header exit to the muffler entrance that gets replaced. Expensive part!

[bobalou1]

Dealer is still waiting on B/O parts.

[bobalou1]

I have finally heard from the dealer and Toyota approved the Cat swap on my 08 Yaris. Parts are on back order nation wide indicating there is a bigger problem than just with the 06 and 07 models.