MistaMiagy

Hi everybody

recently i got a problem with my 2008 Lexus IS300 AT. I bought it band new. now its not even 100.K.Basically i have no claims bout car, served ok all the time and didn't create any problems but.
Like almost one year i have an issue with some stinky smell inside the vehicle when i push the gas pedal to the floor. Stinks like hydrogen sulfide. My brother in law says that it comes inside interior when the windows open but sometimes i smell it even when it completely shut.
I'll tell you what i have done so u can exclude some options of issues straightaway:
i did change the battery, and it did nothing smells remain.
i was going to change the catalyst but service guy told me that he had a guy with just same model and make vehicle with the same problem and he replaced catalysts and it wont change nothing.
SO, im guessing what it might be,
NOTE: it gives you bad odor onli in high RPMs in low it works ok.

Waiting on your answers and offers.
Thank u in advance

MistaMiagy

Thanks for the respond, highly appreciated.
So your offer is to change cats or the exhaust system completely? it would solve the problem for sure?
In our region in most cases when u got your catalytic converter plugged of, its just dismantled and replaced with 2 inch pipe with the mesh or something like that. means that your vehicle is running without cats. You'd have a louder sound and larger fuel consumption but wont smell rotten eggs any more.

MistaMiagy

Thanks anyway....appreciate it!!!!!
Im gonna replace cats and see what happens, later i'm sharing my experience.

MistaMiagy

Hello PatrixUSA,

Just FYI, i've replaced all the cats and i still have the problem of bad egg smell. So on the next week i'm going to get the engine and transmission box down in order to replace the gasket of exhaust manifold on the engine block. This is the last thing i assume can have an issue.

bbaugher47

Is the car throwing any codes?

whitebeast

iTrader: (5)

Check your air condition mode. It should be in recirculated mode (not getting air from our side)

MistaMiagy

Nope,no codes no errors vehicle is acting normal the smell is the only issue

MistaMiagy

nothing to do with air cond mode cause smell is coming from outside when windows down.the problem is somwhere in the engine sector

trippy

iTrader: (1)

smell like rotten egg ?

SC400slide

iTrader: (11)

Most vehicles, whenever they are floored at WOT have that same rotten egg scent, from what I've noticed. Does sound like the cats are getting worn.