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Question for the Auto Mechanics, Rotten Egg Smell *REVISITED* Pg 5
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In accordance with industry accepted best practices we ask that users limit their copy / paste of copyrighted material to the relevant portions of the article you wish to discuss and no more than 50% of the source material, provide a link back to the original article and provide your original comments / criticism in your post with the article.
[quote:Anonymous Coward 73706403:MV8zNDExMTI3XzYwNzgxMTExXzQ0MTg0NTUy] [quote:BrokenTech:MV8zNDExMTI3XzYwNzgxMDI5XzYwMkNGNDk0] [quote:Anonymous Coward 73706403:MV8zNDExMTI3XzYwNzgwOTk3X0QzMEQ1Q0Iy] [quote:The Wild 0nes:MV8zNDExMTI3XzYwNzgwOTEzXzFDQjkxMkEz] :0nmyt0es: [/quote] You're pretty sharp dude. I enjoyed that. Def not what I expected to find on a conspiracy forum some random night. LOL Are you a tech? Enthusiast? Student? [/quote] I was reluctant to even post the question. I even went on a Grand Prix modding forum and the only answers I could get there as well was to just replace the cat or I needed headers because I dropped the SC pulley. Like I said, not a pro, but know bullshit when I hear it. There are some pretty smart people here if you can wade through all the dumb asses to find them. Need to drain the swamp I suppose. Thanks for your insight. [/quote] Yeah, I would think a specific GP forum is where you would want to be. That's kinda surprising. Do as Wild Ones suggests with the O2 sensor readings. Check live voltages with the scan tool too. Have a physical look at the cats also. Do they look like they got hot? (IE - Do they look "cast iron" grey?) Does one look more discolored than another? Maybe I missed it, but just how old are the O2 sensors? [/quote]
Original Message
I am fairly mechanically inclined, I do all the maintenance and repairs on my cars. I have encountered an issue that has perplexed me and was looking for more insight.
I am getting a rotten egg smell. As I have always understood it, the rotten egg smell is the result of the sulfur in the fuel contacting the platinum in the catalytic converter.
I am going to withhold a few vehicle specifics, for now, because I have been getting some automatic generic responses that the catalytic is bad and needs to be replaced. I do not buy that, however, if this continues I believe on a long enough time line it will eventually ruin the catalytic. In this case if I were to replace the catalytic, I do not feel the problem would be resolved and would still continue.
I will say that if I change who I buy the fuel from it seems to stop temporarily. It seems to resolve it for 3-4 tanks of gas then it returns. I have three different places that I cycle through buying gas from.
What could be some other things that could cause this to happen? I will say that I am forced to use premium fuel.
Sorry for the lack of vehicle information and vagueness, this is just how my bullshit detectors work.
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