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Discussion Starter #1
Hey all,

To make a long story short:

1. Got my '02 double cab brand new
2. Installed a cat-back exhaust (Jardine) @ 30K
3. Blew cat converter @ 54K, replaced by Toyota for free (P0420 code)
4. Blew cat converter @ 72k, replaced by Toyota for free (same trouble code)
5. Decided, since it has been happening at 20k mile intervals since installing the exhaust, it MUST be the cat-back exhaust. Removed the cat-back exhaust.

So now, after a few hundred miles on my stock exhaust, with brand new catalytic converter, I am smelling rotten eggs when I pull into my garage. Is the cat on it's way to failure AGAIN??

And, if it wasn't my cat-back exhaust causing the problem, what can it be??

Thanks for any help,

Beave
 

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The Catalyst manufacturer's are being forced to eliminate certain "hazardous metals" from their catalysts - nickel being one of these - nickel interacts with the exhaust gases to eliminate the rotten egg smell. (I work with Catalysts for Honda).
I would contact Toyota again - see if they have a remedy for it.
 

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See if someone can get you the details on this TSB that applies to your truck. I do not have all data access.

EG003-03 FEB 03 Exhaust System - Sulfur Smell


Beave said:
Hey all,

To make a long story short:

1. Got my '02 double cab brand new
2. Installed a cat-back exhaust (Jardine) @ 30K
3. Blew cat converter @ 54K, replaced by Toyota for free (P0420 code)
4. Blew cat converter @ 72k, replaced by Toyota for free (same trouble code)
5. Decided, since it has been happening at 20k mile intervals since installing the exhaust, it MUST be the cat-back exhaust. Removed the cat-back exhaust.

So now, after a few hundred miles on my stock exhaust, with brand new catalytic converter, I am smelling rotten eggs when I pull into my garage. Is the cat on it's way to failure AGAIN??

And, if it wasn't my cat-back exhaust causing the problem, what can it be??

Thanks for any help,

Beave
 

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Registered
Joined
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110 Posts
Beave said:
Hey all,

To make a long story short:

1. Got my '02 double cab brand new
2. Installed a cat-back exhaust (Jardine) @ 30K
3. Blew cat converter @ 54K, replaced by Toyota for free (P0420 code)
4. Blew cat converter @ 72k, replaced by Toyota for free (same trouble code)
5. Decided, since it has been happening at 20k mile intervals since installing the exhaust, it MUST be the cat-back exhaust. Removed the cat-back exhaust.

So now, after a few hundred miles on my stock exhaust, with brand new catalytic converter, I am smelling rotten eggs when I pull into my garage. Is the cat on it's way to failure AGAIN??

And, if it wasn't my cat-back exhaust causing the problem, what can it be??

Thanks for any help,

Beave
the rotten egg smell is sulfur. when you end up with fuel that wasn't burned in the cylinders your cat burns it(for emissions). the smell means your cat is working.
 

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tacoman13 said:
the rotten egg smell is sulfur. when you end up with fuel that wasn't burned in the cylinders your cat burns it(for emissions). the smell means your cat is working.
rotten egg smell -- hydrogen sulfide ;) H2S
 

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Discussion Starter #6
Ok, so sounds like I am all good. My next mod will be a set of nose-plugs ;)

Thanks,

Beave
 

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tacoman13 said:
same difference
Uh, no. Sulfur smells like Sulfur and H2S smells like rotten eggs.
 
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